Expose the RzCore meta API

[imbillow]

SQUASH ME

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've documented or updated the documentation of every function and struct this PR changes. If not so I've explained why.
• I've added tests that prove my fix is effective or that my feature works (if possible)
• I've updated the rizin book with the relevant information (if needed)

Detailed description

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Test plan

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Closing issues

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[imbillow]

rizinorg/cutter#2861

[XVilka]

I think analysis should not depend on IO. Better to move those APIs to librz/core/cmeta.c

[imbillow]

doxygen runs much slower than compiled code

[XVilka]

Ubuntu clang-format version 13.0.1-++20211221063253+abc0cf92bb14-1~exp1~20211221183333.39
librz/core/cmeta.c:427:3: error: code should be clang-formatted [-Wclang-format-violations]
 * 
  ^
librz/core/cmeta.c:431:37: error: code should be clang-formatted [-Wclang-format-violations]
 * \param encoding string's encoding 
                                    ^

[imbillow]

• a asyncCmdEsil * 9, asyncCmd * 1 cmdRawAt * 2 cmdj * 3, cmdjAt * 2
• p cmdRawAt * 2
• f cmdRaw * 8, cmdj * 1
• e cmdRaw * 1, cmdj * 6
• w cmdRaw * 2, cmdj * 1
• o cmdRaw * 4, cmdj * 1
• d asyncCmd * 10, cmdRaw * 2, cmdj * 8
• i cmdj * 11, cmdjTask * 1
• v cmdj * 1
• C
• z cmdj * 1
• . cmdTask * 1

#1342
Some of the more used commands have not been porting to the tree-sitter-based one

[XVilka]

@imbillow yeah, it's a recent change, this script should be changed:
https://github.com/rizinorg/rizin/blob/dev/sys/clang-format.py#L14
cc @ret2libc

[ret2libc]

LGTM apart from that small thing