A layer's target set can now be changed. Closes bitfocus/companion#459
Layer presets can be applied or unlinked. Closes bitfocus/companion#460
Layer blend modes and opacity can be set. Closes bitfocus/companion#461
Opacity can be either absolute or relative
Updated HELP.md to describe the new actions
This PR also adds REST GET support (needed to retrieve the layer's current opacity when specifying relative opacities). I consolidated the GET/POST logic to reduce code duplication.
Adds some requested features to the PVP module:
This PR also adds REST GET support (needed to retrieve the layer's current opacity when specifying relative opacities). I consolidated the GET/POST logic to reduce code duplication.