feat(light-effects): add support for grids of light fixtures

[Yoronex]

Description

Most effects now have two new properties, namely pattern and direction. With the pattern property, the 1D effect can be mapped onto a 2D space, namely a grid. There are already some patterns present, but if people come with new ones, we can simply add them by providing a new strategy class to map a global effect progression (in interval [0,1]) to the progression of a single fixture (in interval [0,1]).

Contains a breaking change, because the props of the Wave effect now also take a list of colors instead of a single color. Even though only the first one is used, this change is already made to support a new lights effects controller #33.

Related issues/external references

Fixes #26 and #27.

Types of changes

• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)