Converting pf commands to rzshell

[XVilka]

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

• pf. now requires space after dot
• Any pf command now recognizes named format - it should start from dot, e.g. pfs .bla where bla is the format name
• Defining new format now requires using pfn <format name> <format>
• Listing named formats - pfn (before - pf.)
• Print definition of the named format - pfn <format name>, previously pf.bla
• Writing data requires using pfw command instead of just pf or pf.
• pfw now supports both variants: pfw bla.foo 42 and pfw bla.foo=42
• Removed unused format descriptions for NTFS, FAT, TRX

Test plan

CI is green

Closing issues

Partially addresses #1590
Partially addresses #3842

[ret2libc]

Nice!

[ret2libc]

shouldn't we have each named argument as a separate argument of the pf command?

[XVilka]

Maybe in theory. But that would require rewriting almost all of the librz/type/format.c, which is an immense task in itself and is a story for another time. Moreover, it would make sense to rethink the format syntax/semantics before that task as well: #783

[wargio]

nice cleanup