[PJRT:C] Control whether to call wrapped C++ PJRT client directly with a global variable `kPjRtCApiBypass`.
[PJRT:C] Control whether to call wrapped C++ PJRT client directly with a global variable `kPjRtCApiBypass`.

Default value of `kPjRtCApiBypass` is false.

PiperOrigin-RevId: 472847147

google/jax,google/jax,google/jax,google/jax