Tidy up install paths & directories:
-> modprobe.d & udev rules
(both are now ON per default on Linux)
-> stlink-gui supplements
-> man pages
- Fixed paths according to GNUInstallDirs
- cmake: Restructured library config
- Test files & gui now use shared library
- Added builds for clang -m32 on arch: AMD64
- Corrected invalid config settings
- Added clang-9 builds for linux
- Moved scripts to root directory
- Added MinGW cross-test-build for linux
- Updated travis CI build config
- Refactoring of cmake build config
- Alligned coding style for GUI
- Whitespace cleanup for GUI
- Moved source code for GUI
* Don't use `%zx` because it's unsupported on mingw64
* Also check that no warnings happen on travis
* Prefer `unsigned int` over `unsigned`
* Install libusb through the travis whitelist instead of manually
* Test stlink against clang and gcc through the travis "compiler" flag instead of a manual matrix
* Re-add osx
* Fix warning on gcc
* Fixup README to render HTML from Markdown
* Fixup CMakeLists.txt to have a lower working minimum version
* Add .travis.yml and .travis.sh for autobuild
nightwalker-87