Create a version range from a string representation

Some spec examples are 1.0 Version 1.0 [1.0,2.0) Versions 1.0 (included) to 2.0 (not included) [1.0,2.0] Versions 1.0 to 2.0 (both included) [1.5,) Versions 1.5 and higher (,1.0],[1.2,) Versions up to 1.0 (included) and 1.2 or higher