## Link to GitHub Issue, if one exists
user-reported
## Description of change
When the system non-Unicode language is not set to Japanese, TDJ
subscreen katakana keyboard was broken (weird behavior with characters
not erasing, ending with corrupt characters, etc)
To fix this, add a hook for `IsDBCSLeadByte`. `IsDBCSLeadByte` assumes
system ACP (which may not be SHIFT_JIS). Instead, redirect bm2dx.dll to
use `IsDBCSLeadByteEx` instead with SHIFT_JIS explicitly specified as a
parameter.
Presumably the game was using IsDBCSLeadByte to manage the keyboard
typing logic.... which is weird because SDVX doesn't do the same.
## Testing
Tested iidx 31 and tried to do searches.
## Link to GitHub Issue, if one exists
Fixes#362
## Description of change
Add a hook for `GetLocaleInfoEx` and return `ja-JP` to fix the
"translation not found" issue in XIF.
## Testing
Tested with/without Disable ACP option.
bicarus-dev