Update updated KPrepublic boards to be prepared for the update

[peepeetee]

I added a /rev1 directory to

• bm60rgb
• bm60rgb_iso
• bm60poker

, as KPrepublic has updated the boards with a v2 (see discussion here #14800). This prepares these boards to be able to have a /rev2 directory added, without being a breaking change.

bm65rgb is already updated with a /rev1 in #14800

Please inform me of any other v2 boards they have made so I can update this list

Description

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[peepeetee]

from @sigprof in #14800 :

Not really sure what the purpose of the rev folders are.

KPrepublic silently updated the boards sold at kprepublic.com/products/bm65rgb-bm65-rgb-65-hot-swappable-custom-mechanical-keyboard-pcb-programmed-qmk-via-firmware-full-rgb-switch-underglow-type-c (and other their shops) from the original PCB revision (both per-key RGB LEDs and underglow LEDs implemented as a single chain of WS2812-like addressable LEDs) to the new one called “BM65V2” (per-key RGB LEDs using IS31FL3741, underglow using WS2812, different pins used for key matrix). The intent is to add support for older boards as kprepublic/bm65rgb/rev1, and then add the new version as kprepublic/bm65rgb/rev2; this way the keymaps may be shared between both versions of the PCB (the layout is exactly the same).

However, if this PR is intended to add the support just for the older BM65RGB PCB, it should contain only the kprepublic/bm65rgb/rev1 files, and no rev2 files at all — rev2 could be added later.

[peepeetee]

@bytesapart @markva @mechmerlin @ipetepete

[tzarc]

Just a note for other collaborators: this missed the deadline for the Nov'21 breaking changes -- it's preferable that this goes in earlier rather than later, so I'm marking it to be included.