Add file search by other criteria

[victordomingos]

Add file search by other criteria:

• date last modified;
• name starts with (name prefix);
• name ends with (name suffix);
• name contains;
• extension starts with (extension prefix);
• extension ends with (extension suffix);
• extension contains;
• file size bigger than;
• file size smaller than.

_Originally posted by @victordomingos in https://github.com/victordomingos/Count-files/issues/84#issue-358729640

it will be difficult - many filters. can be used: os.stat, glob or pathlib usually operating systems have tools for searching and sorting files and folders according to the pattern. here need to think about what tasks we can solve without duplication.

Originally posted by @NataliaBondarenko in https://github.com/victordomingos/Count-files/issues/84#issuecomment-421594522