* Use string constants instead of integers
* Derive new names from old via conversion of constant
naming convention to CamelCase.
* Replace old constant string e.g. 'MW_MATH_ABC_DEF'
with new string 'abcDef'
* Replace old constant value with new string.
* Tests to demonstrates what is actually done.
* Rename constants
Bug: T106630
Bug: T106631
Bug: T87941
Change-Id: I6d1094ece79e912d9ddbef6681a25196c7a6e801
Add release note for math 3.0.0.
Add HISTORY file for old release notes for older releases.
Bug: T106953
Change-Id: I7cb0c3c03bc60de3b3503edeaf74d46f935ac581