- Introduce the following new methods:
* `rz_analysis_similarity_basic_block()`
* `rz_analysis_similarity_function()`
* `rz_analysis_similarity_basic_block_2()`
* `rz_analysis_similarity_function_2()`
* `rz_analysis_match_basic_blocks()`
* `rz_analysis_match_functions()`
* `rz_analysis_match_basic_blocks_2()`
* `rz_analysis_match_functions_2()`
- Remove `RzAnalysisDiff` and its usages
- Remove `librz/analysis/diff.c` entirely to and adds `librz/analysis/similarity.c`
- Remove a lot of unused structures and simplified the code by a lot
- Fix typo in levenshtein
- Remove `librz/core/gdiff.c` and `gdiff` functions since they were unused or only used in rz-diff
- Remove `difftype` (or "color") from `RzANode` which lead to dead code
- Decrease serialized data in projects.
- Add `RzAnalysisVarKind` and `RzAnalysisVarType` and replaces all the hardcoded values
- Remove command `agd`
- Remove all `rz_core_gdiff` usages from `rz_core.h`
- Refactor `rz_analysis_var_list` and `rz_analysis_var_count` due unused argument (`RzAnalysis` was not used)
- Add new method `rz_analysis_var_count_total` to simplify some usages
- Remove `rz_core_graph_diff`
- Add `typedef RzAnalysisFcnType` on `enum``used for function types
- Remove unused `RZ_ANALYSIS_FCN_VARKIND_LOCAL`
- Remove from `RzAnalysisFunction` the following variables:
* `fingerprint`
* `fingerprint_size`
* `diff`
* `diff_ops`
* `diff_thbb`
* `diff_thfcn`
- Remove from `RzAnalysisBlock` the following variables:
* `fingerprint`
* `diff`
- Remove `RZ_ANALYSIS_THRESHOLDBB` and `RZ_ANALYSIS_THRESHOLDFCN`
- Remove the following callbacks from `RzAnalysisPlugin`
* `RzAnalysisDiffBBCallback`
* `RzAnalysisDiffFcnCallback`
* `RzAnalysisDiffEvalCallback`
- Fix fancy table columns/rows when a color string is in a cell
- Bumped project version to 9
