Add check of Carthage framework

Added:

• Check of linked Carthage frameworks count to prevent adding Carthage script without paths

Fixed:

• Adding paths for frameworks built not by Carthage. Related to #1. Thanks to @virusman!

Multiple targets support

Added:

• Adding Carthage script to every target if needed
• Checking of linked frameworks instead of Carthage folder

Fixed:

• Script body mapping

Adding a new script

• Add parsing of targets and build phases;
• Add creating of a new script if there is no scripts with the name.

Basic implementation

• Add updating of early created script;
• Add script name as first command line parameter;
• Add Carthage and Marathon support.