v0.5.0: [cs] to [cl]. Different yet Same.

In the last release [cl] was changed to [ct]. Now, in this release, [cs] is being changed to [cl].
[cl] now works the about same as it does for Japanese labeling. This should rectify all confusion users were having.

[cl] - For when a stop/popped consonant is held for an abnormally long time. to sustain the silence/closure.
[ct] - For toggling the closure state of the consonant. To override context. (refer to LAB_HOWTO.txt for an explanation.)

Both phonemes are technically optional and a proper dataset can be created without using either. They just provide more control for weird edge cases.