go: add wrapper for system info

[glaslos]

whisper_init_from_file: loading model from '/home/glaslos/workspace/whisper.cpp/bindings/go/models/ggml-small.en.bin'
whisper_model_load: loading model
whisper_model_load: n_vocab       = 51864
whisper_model_load: n_audio_ctx   = 1500
whisper_model_load: n_audio_state = 768
whisper_model_load: n_audio_head  = 12
whisper_model_load: n_audio_layer = 12
whisper_model_load: n_text_ctx    = 448
whisper_model_load: n_text_state  = 768
whisper_model_load: n_text_head   = 12
whisper_model_load: n_text_layer  = 12
whisper_model_load: n_mels        = 80
whisper_model_load: f16           = 1
whisper_model_load: type          = 3
whisper_model_load: mem required  = 1027.00 MB (+   16.00 MB per decoder)
whisper_model_load: kv self size  =   15.75 MB
whisper_model_load: kv cross size =   52.73 MB
whisper_model_load: adding 1607 extra tokens
whisper_model_load: model ctx     =  464.56 MB
whisper_model_load: model size    =  464.44 MB

system_info: n_threads = 16 / 16 | AVX = 1 | AVX2 = 1 | AVX512 = 0 | FMA = 1 | NEON = 0 | ARM_FMA = 0 | F16C = 1 | FP16_VA = 0 | WASM_SIMD = 0 | BLAS = 0 | SSE3 = 1 | VSX = 0 | 

Loading "samples/jfk.wav"
  ...processing "samples/jfk.wav"

whisper_print_timings:     fallbacks =   0 p /   0 h
whisper_print_timings:     load time =   304.42 ms
whisper_print_timings:      mel time =    21.51 ms
whisper_print_timings:   sample time =     9.78 ms /    30 runs (    0.33 ms per run)
whisper_print_timings:   encode time =  1908.93 ms /     1 runs ( 1908.93 ms per run)
whisper_print_timings:   decode time =   880.89 ms /    30 runs (   29.36 ms per run)
whisper_print_timings:    total time =  3158.26 ms
[    0s->    8s]  And so, my fellow Americans, ask not what your country can do for you.
[    8s->   11s]  Ask what you can do for your country.