Yaramod

* Add Python binding for `yaramod::IntFunctionEndianness` ([132](https://github.com/avast/yaramod/issues/132), [#181](https://github.com/avast/yaramod/pull/181)).
* Add unary operator `defined` ([178](https://github.com/avast/yaramod/pull/178)).
* Fix generation of double values - always use decimal notation ([179](https://github.com/avast/yaramod/pull/179)).
* Fix typos in documentation ([180](https://github.com/avast/yaramod/pull/180)).

* Avoid global symbols to be renamed when renaming local variable ([174](https://github.com/avast/yaramod/pull/174))

* Fix for multi-line arrays to be formatted with proper indentation ([172](https://github.com/avast/yaramod/pull/172), [#171](https://github.com/avast/yaramod/issues/171))
* Added pe.version_info_list and pe.number_of_version_infos ([167](https://github.com/avast/yaramod/pull/167))

* Fixed YaraFileBuilder::get with recheck to use the builder's module pool ([166](https://github.com/avast/yaramod/pull/166))

* Travis: Add brew upgrade step ([164](https://github.com/avast/yaramod/pull/164))
* Add missing REFERENCE_SYMBOL, LSQB_ENUMERATION, RSQB_ENUMERATION Pytnoh bindings ([160](https://github.com/avast/yaramod/pull/160))
* Incomplete rules parsing allowing also unknown symbols and imports ([159](https://github.com/avast/yaramod/pull/159), [#45](https://github.com/avast/yaramod/issues/45), [#97](https://github.com/avast/yaramod/issues/97))
* Fixed pe.rich_signature.raw_data and pe.rich_signature.clear_data types to string.

* Feature for older compilers: Include filesystem library based on its availability.