Apply clang-tidy fixes

[varunsh-xilinx]

Summary of Changes

• Apply suggestions by clang-tidy for style
• Apply suggestions by iwyu for including headers

Motivation

clang-tidy helps maintain code quality. Applying the fixes to the existing code allows us to use it on future PRs to ensure new code does not introduce new issues. Similarly, iwyu can also be used to keep headers up-to-date

Implementation

I used the tools/lint-cache.sh script to iterate through the messages from clang-tidy and iwyu for the files in the repository.

Notes

There aren't major changes required after pulling this PR aside from renaming some things:

• Some function names are changed for style. Should be just replaced with the new name
• The enum name formats, namely the DataType enum, are changed. The ALL_CAPS variant are supported as aliases for now but this will be removed. The ALL_CAPS names can conflict with macros and are changed to PascalCase.
• The mapping to/from XIR datatypes is removed from the public API. These kinds of library-specific headers and functionality should be provided in a separate header + library so the main library doesn't bloat with all sorts of very specific functions.

[gbuildx]

Build failed!

[gbuildx]

Build failed!

[gbuildx]

Build successful!