Big changes for RSLED

v1.1.0

RSLED/VIRTUAL_LED (#37, #39):

• Use Kelvin light instead of separate kelvin/intensity numbers.
  It's a major change, hope there is no big regression, specially for G2.
  For more information read this.

RSLED G1:

• Compensation is now available for all G1.

RSLED G2:

• Add stepping for Kelvin values.

VIRTUAL_LED:

• Can now use state switch