added javadoc
Merge remote-tracking branch 'origin/feature/javadoc_added'

Conflicts:
	src/main/java/org/atemsource/atem/utility/transform/impl/builder/OneToOneAttributeTransformationBuilder.java
	src/main/java/org/atemsource/atem/utility/transform/impl/builder/SingleAttributeTransformationBuilder.java