mstd library updated and tools for auto packing (#7)

mstd updated (#6)

readme examples fixed (#5)

- added examples folder with examples projects
- updated examples in readme
- updated docs
- updated mstd version

is_valid_pattern function added (#3)

* is_valid_pattern function added

- also changed sub_values_table key from string to string_view
- changed logic with using pcre2cpp_assert

* documentation update

Mstd update and shared libs fix (#2)

* mstd update and shared libs fix

* docs update

* clang-format fixes

mstd compile definitions fixes

docs update

Version Change

options flags update and string_view support

small fixes