updates LMT transforms and LMT README

The 3D-LUT LMT for matching the appearance of v0.1.1 is updated to work with the v0.7 ACES system.
A similar 3D-LUT LMT is added for matching the appearance of v0.2.2 through the v0.7 ACES system.
The README is updated to reference v0.7 and fix typos.
updates CHANGELOG, increments version numbers in file headers, updates README(s)