added a script for generating the fingerprints file, a password and an obscured version of the password out of a directory with files
- added obfuscation support for setting the secret. Algorithm: out of a 310-byte long obfuscated character array, use only the first 32 on prime numbered indices to build the actual secret.
made the fingerprints mutable. moved the fingerprints into the nsuserdefaults. The NSUserdefaults values should always be overwritten with the current fingerprints file contents, to enable app updates with different versions of the signature file and signed files
adding sign support for resources that get written by the app, thus trusted and can be signed. use case: local caches, generated files.