Is your feature request related to a problem? Please describe.
I have an (old) compiler/architecture that does not provide support for 64-bit integers.
I.e., int64_t and uint64_t are not provided.

Describe the solution you'd like
I would like to introduce the configuration option TRICE_64_BIT_SUPPORT that defaults to 1, but can be explicitly set to 0 in triceConfig.h.

Describe alternatives you've considered
I tried to check for a related C-standard-provided macro from stdint.h like UINT64_MAX, but apparently, you cant't rely on #ifdef to check that. (At least for me, my C++ compiler accepts UINT32_MAX and provides the correct value. Yet, the condition #ifdef UINT32_MAX is not matched.)

Additional context
Relevant code:

• All variations of trice64(...) in triceOn.h and trice.c
• aDouble(...) in trice.h (due to uint64_t usage)
• #include "trice64.h" in trice.h
• triceConfig.h where the default definition has to reside.
  Note that trice64[...].c/.h are considered irrelevant. These should not be included/compiled when 64 bits are not supported.

Proposal
I will provide an appropriate pull request soon.