This introduces the ability to split asm strings into tokens and assign a type to them.
This means:
* Each asm strings is assigned a list of tokens. Each token points to a sub-string.
* A token has a type attached which describes it (e.g. register token, operator token, mnemonic token etc.)
* A generic parsing method is introduced which splits an asm string into tokens. The pattern it parses is `<mnem> <op> <op> ...`.
* Instead of the generic method, plugins can create the token strings on their own.
* An API method was introduced to help plugins implement their own parsing methods via regex patterns.
* Custom token strings are stored in `RzAsmOp.asm_toks`
Additionally the coloring of asm strings is now exclusively done via the token strings.
* For this a function was added to colorize tokenized asm strings according to their token types.
* Fill `op->reg` for ARM64 `br`/`blr` analysis
* This fixes software single-stepping on `br`/`blr` instructions on ARM64
* Fill `op->reg` for ARM `bx`/`blx` analysis
* This fixes software single-stepping on `bx`/`blx` instructions on ARM
* Set `bx` as `RZ_ANALYSIS_OP_TYPE_RJMP`
* Fill `RzAnalysisValue->type`
* Use only `RzAnalysisValue` in `rz_core_link_stroff()`
* Fill `op->ireg/disp/scale` for ARM `ldr` analysis
* This fixes software single-stepping for `ldr pc` on ARM
* Fix riscv inverted src/dst values for store instructions
* Fix riscv analysis with buffer of size 2
* Add unit tests for `RzAnalysisOp` and `RzAnalysisValue`
Co-authored-by: Giovanni <561184+wargio@users.noreply.github.com>
