Add aliases for event names

[giordano]

Fix #52

[Zentrik]

Where does cpu_core/instructions/ come from? I see this from perf

rag@pop-os:~$ perf list | grep instructions
  branch-instructions OR branches                    [Hardware event]
  instructions                                       [Hardware event]
  branch-instructions OR cpu/branch-instructions/    [Kernel PMU event]
  instructions OR cpu/instructions/                  [Kernel PMU event]
       [The number of fused retired branch instructions retired per cycle. The
       [MMX instructions]
       [SSE instructions (SSE, SSE2, SSE3, SSSE3, SSE4A, SSE41, SSE42, AVX)]
       [x87 instructions]
Error: failed to open tracing events directory

[giordano]

% perf list | grep ' OR '                                 
  branch-instructions OR branches                    [Hardware event]
  cpu-cycles OR cycles                               [Hardware event]
  context-switches OR cs                             [Software event]
  cpu-migrations OR migrations                       [Software event]
  page-faults OR faults                              [Software event]
  L1-dcache-loads OR cpu_atom/L1-dcache-loads/
  L1-dcache-stores OR cpu_atom/L1-dcache-stores/
  L1-icache-loads OR cpu_atom/L1-icache-loads/
  L1-icache-load-misses OR cpu_atom/L1-icache-load-misses/
  LLC-loads OR cpu_atom/LLC-loads/
  LLC-load-misses OR cpu_atom/LLC-load-misses/
  LLC-stores OR cpu_atom/LLC-stores/
  LLC-store-misses OR cpu_atom/LLC-store-misses/
  dTLB-loads OR cpu_atom/dTLB-loads/
  dTLB-load-misses OR cpu_atom/dTLB-load-misses/
  dTLB-stores OR cpu_atom/dTLB-stores/
  dTLB-store-misses OR cpu_atom/dTLB-store-misses/
  iTLB-load-misses OR cpu_atom/iTLB-load-misses/
  branch-loads OR cpu_atom/branch-loads/
  branch-load-misses OR cpu_atom/branch-load-misses/
  L1-dcache-loads OR cpu_core/L1-dcache-loads/
  L1-dcache-load-misses OR cpu_core/L1-dcache-load-misses/
  L1-dcache-stores OR cpu_core/L1-dcache-stores/
  L1-icache-load-misses OR cpu_core/L1-icache-load-misses/
  LLC-loads OR cpu_core/LLC-loads/
  LLC-load-misses OR cpu_core/LLC-load-misses/
  LLC-stores OR cpu_core/LLC-stores/
  LLC-store-misses OR cpu_core/LLC-store-misses/
  dTLB-loads OR cpu_core/dTLB-loads/
  dTLB-load-misses OR cpu_core/dTLB-load-misses/
  dTLB-stores OR cpu_core/dTLB-stores/
  dTLB-store-misses OR cpu_core/dTLB-store-misses/
  iTLB-load-misses OR cpu_core/iTLB-load-misses/
  branch-loads OR cpu_core/branch-loads/
  branch-load-misses OR cpu_core/branch-load-misses/
  node-loads OR cpu_core/node-loads/
  node-load-misses OR cpu_core/node-load-misses/
  branch-instructions OR cpu_atom/branch-instructions/[Kernel PMU event]
  branch-misses OR cpu_atom/branch-misses/           [Kernel PMU event]
  bus-cycles OR cpu_atom/bus-cycles/                 [Kernel PMU event]
  cache-misses OR cpu_atom/cache-misses/             [Kernel PMU event]
  cache-references OR cpu_atom/cache-references/     [Kernel PMU event]
  cpu-cycles OR cpu_atom/cpu-cycles/                 [Kernel PMU event]
  instructions OR cpu_atom/instructions/             [Kernel PMU event]
  mem-loads OR cpu_atom/mem-loads/                   [Kernel PMU event]
  mem-stores OR cpu_atom/mem-stores/                 [Kernel PMU event]
  ref-cycles OR cpu_atom/ref-cycles/                 [Kernel PMU event]
  topdown-bad-spec OR cpu_atom/topdown-bad-spec/     [Kernel PMU event]
  topdown-be-bound OR cpu_atom/topdown-be-bound/     [Kernel PMU event]
  topdown-fe-bound OR cpu_atom/topdown-fe-bound/     [Kernel PMU event]
  topdown-retiring OR cpu_atom/topdown-retiring/     [Kernel PMU event]
  branch-instructions OR cpu_core/branch-instructions/[Kernel PMU event]
  branch-misses OR cpu_core/branch-misses/           [Kernel PMU event]
  bus-cycles OR cpu_core/bus-cycles/                 [Kernel PMU event]
  cache-misses OR cpu_core/cache-misses/             [Kernel PMU event]
  cache-references OR cpu_core/cache-references/     [Kernel PMU event]
  cpu-cycles OR cpu_core/cpu-cycles/                 [Kernel PMU event]
  instructions OR cpu_core/instructions/             [Kernel PMU event]
  mem-loads OR cpu_core/mem-loads/                   [Kernel PMU event]
  mem-stores OR cpu_core/mem-stores/                 [Kernel PMU event]
  ref-cycles OR cpu_core/ref-cycles/                 [Kernel PMU event]
  slots OR cpu_core/slots/                           [Kernel PMU event]
  topdown-bad-spec OR cpu_core/topdown-bad-spec/     [Kernel PMU event]
  topdown-be-bound OR cpu_core/topdown-be-bound/     [Kernel PMU event]
  topdown-br-mispredict OR cpu_core/topdown-br-mispredict/[Kernel PMU event]
  topdown-fe-bound OR cpu_core/topdown-fe-bound/     [Kernel PMU event]
  topdown-fetch-lat OR cpu_core/topdown-fetch-lat/   [Kernel PMU event]
  topdown-heavy-ops OR cpu_core/topdown-heavy-ops/   [Kernel PMU event]
  topdown-mem-bound OR cpu_core/topdown-mem-bound/   [Kernel PMU event]
  topdown-retiring OR cpu_core/topdown-retiring/     [Kernel PMU event]