[FE6] Expanded Modular Save

[Mokha]

See here

/**
 * Mokha's plan:
 * see src/modular-save.h
 *
 * SAVE NAME       SAVE OFFSET     SAVE LENGTH     DEFAULT LENGTH  EXPANSION SIZE
 * meta            0x00            0x94            0x94            0x0
 * suspend0        0x94            0x27C0          0x1DAC          0xA14
 * suspend1        ------          ------          0x1DAC          -----
 * save1           0x2854          0x1474          0xDF0           0x684
 * save2           0x3CC8          0x1474          0xDF0           0x684
 * save3           0x513C          0x1474          0xDF0           0x684
 * _PAD_           0x65B0          0x8             -----           -----
 * link_arena      0x65B8          0x93C           0x93C           0x0
 * _PAD_           0x6EF4          0xC             -----           -----
 * chunk6          0x7000          0x1000          0x1000          0x0
 */

Some thing need to discuss:
chunk6 seems unused in FE6, which means maybe we can split that 0x1000 size block to SU & SA data.

[Mokha]

New plan which split chunk6 for further expansion, also you can directly download such portable file:

Download here