DoubleX RMMV Superlative ATB

[DoubleX]

Updates

Code:

*      - v0.15b(GMT 0400 7-Dec-2020):
*        1. You no longer have to edit the value of
*           DoubleX_RMMZ.Superlative_ATB_Parameters_File when changing the
*           parameter plugin file name
*        2. Fixed the wrong this of the following Array prototype methods:
*           i. fastFilter
*           ii. fastMap
*           iii. filterMap
*           iv. mapFilter
*           v. mapReduce
*           vi. mapSome
*        3. Fixed the x and y positions and opacity update bugs for discrete
*           order battler sprites
*        4. Fixed wrong unit test check conditions for the x and y positions
*           and opacity for discrete order battler sprites