Support qubit count tracking within Q#

[swernli]

This introduces qubit count tracking APIs to the Diagnostics namespace that allow Q# code to get counts for how many unique qubits are used during a section of execution. This is useful in katas and auto-grading scenarios to verify that exercise restrictions are being appropriately followed.

Fixes #1155

[tcNickolas]

One more thing that needs a test case - in the chat we discussed "because multi-controlled gates are decomposed during simulation the same way they are for hardware, they will allocate additional auxiliary qubits proportional to the number of control qubits, which will show up in the count." - there is no test case with a controlled functor right now

[github-actions]

Change in memory usage detected by benchmark.

Memory Report for 5ee2b12

Test	This Branch	On Main	Difference
compile core + standard lib	18000952 bytes	17991768 bytes	9184 bytes

[github-actions]

Benchmark for 5ee2b12

Click to view benchmark

Test	Base	PR	%
Array append evaluation	327.2±4.15µs	336.9±2.71µs	+2.96%
Array literal evaluation	171.7±1.14µs	186.6±0.73µs	+8.68%
Array update evaluation	406.2±1.81µs	414.9±1.82µs	+2.14%
Core + Standard library compilation	22.4±0.52ms	24.6±1.17ms	+9.82%
Deutsch-Jozsa evaluation	4.9±0.04ms	5.0±0.10ms	+2.04%
Large file parity evaluation	34.4±0.11ms	34.3±0.23ms	-0.29%
Large input file compilation	14.4±0.41ms	15.5±0.68ms	+7.64%
Large input file compilation (interpreter)	55.1±2.59ms	57.1±3.11ms	+3.63%
Large nested iteration	32.8±0.65ms	32.9±0.42ms	+0.30%
Perform Runtime Capabilities Analysis (RCA) on Deutsch-Jozsa sample	1573.2±38.36µs	1626.1±152.94µs	+3.36%
Perform Runtime Capabilities Analysis (RCA) on large file sample	8.0±0.10ms	8.3±0.13ms	+3.75%
Perform Runtime Capabilities Analysis (RCA) on teleport sample	1431.6±53.24µs	1482.2±129.92µs	+3.53%
Perform Runtime Capabilities Analysis (RCA) on the core and std libraries	27.7±0.24ms	29.2±1.05ms	+5.42%
Teleport evaluation	93.4±3.41µs	94.4±7.73µs	+1.07%