Update CHANGES.md

Merge pull request libretro#13216 from libretro/splitup-record

Split up recording code

BUmp up version to 1.9.13

Bump up version to 1.9.12

Update CHANGES.md

Bump version

Reduce gfx_display_rotate_z calls in menu drivers (libretro#12937)

* (Ozone) Take out gfx_display_rotate_z out of ozone_draw_icon -
lots of matrix rotates and multiplies were happening when
just calling it once would suffice

* (MaterialUI) Reduce calls to gfx_display_rotate_z

* (XMB) Cleanup

Update CHANGES.md

Bump version to 1.9.7

Update CHANGES.md