Make charging animations fancier (NM WAZ HERE)

Moved animation section maxLevels to be same as static charging image maxLevles
0-60% animations now repeat at approximately 0.5 Hz.
60-100% animations repeat at approximately 1 Hz.
At 90%, the icon animates between the charging and non-charging 100% drawables

PS2: Note to self--Nuke is probably right.
PS3: Or maybe he's wrong!
PS4: see above
PS5: Made cases continuous

Change-Id: Idebea7f90de4514cae6bda8bd55c6f710c478fef