Ddisasm

* Add PE32 Safe Structured Exception Handling (SAFESEH) support.
* Update LIEF to version 0.12.1.
* Update Souffle to version 2.3.
* Ubuntu 18 and gcc7 are no longer supported
* ARM64 support improvements:
* Handle single-byte jump tables where the value should be interpreted as a
signed difference.
* Prevent generation of incorrect :lo12: attributes in post-index operands.
* Add "--hints" argument.

* Rename `elfSectionIndex` to `sectionIndex`, and `elfSectionProperties` to
`sectionProperties`, and remove `peSectionProperties`.
* Refactor `section_complete`: add `section_property`, and rename `section_complete`
to `section`, and `section` to `loaded_section`.
* Ensure ddisasm --version always reports a commit hash.
* Improve handling of unnamed relocations for libraries and object files.
* Improvements to jump table detection.
* ARM64 support improvements:
* Support symbolization of split loads separated by jump tables or temporary
stack storage.
* Fix disassembling tbz and tbnz branch instructions.
* Fix value tracking of special registers (FP, LR, SP).
* Eliminate warnings generated by SYS instructions.
* Fix disassembling stripped ARM64 binaries.
* Release support for ARM32 and MIPS32 binaries.
* Optimizations to improve performance and reduce memory usage.
* Require GrammaTech's Capstone fork, >5.0.0.
* Add "--profile" argument.

* Add ELF x86_64 .o support.
* Add static archive support.
* Fix a bug with ELF file parsing that could generate failed "unknown binding
in elfSymbolInfo" assertions.
* Infer "main" function in ARM64 binaries.

* Use dedicated symbolic expression attributes.

* Support Souffle interpreter for development.
* Add support for loading existing GTIRB files.

* Add PE support.
* Support ELF x64 static binaries
* Add preliminary x86-32 support.