Create file_search.py

From the documentation:
 1. looks into a specified folder
    2.returns a list of all files.
    3. excludes '~' files
    4. evaluates the type of based on encoding ".php",".js",".py" 
    file types are comma delimited written like this: php,js,py.
    However I sugjest using only one file type.
    5. Creates and returns a list based files matching said encoding
    (this is useful) if you are creating an image viewer and do not need
    link names. Or if building headers (see header file)
    6. creates dictionary with LINKNAME --instructions:
            in the file comment using an octothrope 
            and key word in capital letters [# LINKNAME:]
            example (exactly like this):
            # LINKNAME:My Home Page