* use std::to_chars for doubles
* fixed cmake errors when an escript error occurs
* macos 13 with clang15
* CI: macos new cache version
* guessing game
* guess no2
* test shipped clang with deloytarget env
* adapted testdata, lets see if all platforms behave the same
* explicit test if high precision double can get packed+unpacked
* log testclient receive buffer on error
* added docs
* added test for pack/unpack double which has exponent representation. Bug
in vs 2022 17.8..
removed unneeded minimum versions of cmake, root cmake file has a higher
minimum version
* switch back to vs2019
* force rebuild external libs
* docs
* Build on OSX
* Add macos-latest to build matrix
* Fix case sensitivity checks/tests
* On osx builds, cope with unpacking a double that might be followed by either an exponent or an error (as part of an array).
Also, remove static unpack(const char*) forms that were never called.
Co-authored-by: turleypol <turley@polserver.com>
