* added API stub of static_filesystem
* added callback functions
* added basic directory listing
* resize filesystem if necessary
* added path stub
* adds imlementation and tests of path
* adds mock of wpf_request
* adds test implementation and some matchers
* added matcher of readdir results
* fixes default directory test
* adds implementation of static_filesystem_add and add_text
* added implementation of read
* adds implementation of filesystem_read
* corrects naming of some functions
* removes Flawfinder comments, since Flawfinder is disabled
