GS: Add texture replacement dump/load indicators to OSD

[SternXD]

Description of Changes

Adds visual indicators to the OSD showing the number of dumped and loaded texture replacements. The indicator appears in the performance overlay as a single line: [Icon] Dumped: X | [Icon] Replaced: X,

Rationale behind Changes

Fixes #12958 no one had a way to see if texture dumping/replacement was active or how many textures were processed. The existing notification only appeared once and didn't show counts.

Suggested Testing Steps

1. Enable texture dumping:
   • Settings -> Graphics -> Texture Replacement -> Enable "Dump Textures"
2. Settings -> Graphics -> On-Screen Display -> Enable "Show Texture Replacement Status"
   • Start a game and observe the OSD showing "Dumped: X" increasing
3. Enable texture replacement:
   • Place replacement textures in the game's texture directory
   • Settings -> Graphics -> Texture Replacement -> Enable "Load Textures"
   • Start a game and observe the OSD showing "Replaced: X"
4. Test both simultaneously:
   • Enable both dumping and replacement
   • Verify the OSD shows: [Icon] Dumped: X | [Icon] Replaced: X

Did you use AI to help find, test, or implement this issue or feature?

No.

[SternXD]

(if y'all don't like where I put it in the OSD I am open to move it wherever wasn't exactly sure where to put it) sorted out now