Cvehound

- Restored support for python 3.5
- Fixed `cvehound --cve all ...` argument
- Added minimal coccinelle version to **CVE-2021-38209**, **CVE-2021-3656** rules
- Changed minimal coccinelle version from 1.0.8 to 1.0.7 in **CVE-2020-24490** rule
- Removed minimal coccinelle version for **CVE-2021-0342** rule
- Fixed setup.py by adding `lxml` dependency required for `cvehound_update_metadata`
- Fixed **CVE-2015-4700** false positive with `--all-files`
- Added `--cve [all, assigned, disputed]` modes. Changed default mode from _all_ to _assigned_
- Moved **CVE-2021-3178**, **CVE-2019-12382**, **CVE-2019-12455**, **CVE-2019-19770** to disputed mode
- Fixed coccinelle installation from git in CI
- Added coccinelle 1.0.4 to CI
- Added ChangeLog

- Added section about LICENSE to README.md
- Simplified .grep patterns handling
- Added +40 new CVE descriptions
- Added `--exploit` filter to check only for CVEs known to have exploits (according to FSTEC BDU database)
- Added `cvehound_update_rules` script to fetch detection rules from git without updating a tool

- Added +24 new CVE descriptions
- Fixed installation problem with missing cvehound.kbuildparse package
- Fixed `--all-files` mode
- Removed support for python 3.5
- Added minimal coccinelle versions to **CVE-2021-3587**, **CVE-2021-3347**, **CVE-2020-11884**, **CVE-2018-1108** rules

- Added +50 new CVE descriptions

- Fix `--config` argument check

- Added `--report` option to output json report