Teardown Converter for 2.0.0

For Teardown 2.0.0, public multiplayer release.
https://steamdb.info/patchnotes/22302233/

Teardown Converter for 1.5.4, 1.6.0, 1.6.3 & 1.7.0

Convert maps from Teardown version 1.5.4, 1.6.0, 1.6.3 and 1.7.0