deps: bump bgfx, bimg, and bx. Update to use C++ 20. (#1)

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     name: Check compatibility with minimum cmake version
     runs-on: ubuntu-latest
     env:
-      CMAKE_VERSION: 3.10.2
+      CMAKE_VERSION: 3.20.0
     steps:
       - uses: actions/checkout@v4
         with:

CMakeLists.txt

@@ -8,12 +8,12 @@
 # You should have received a copy of the CC0 Public Domain Dedication along with
 # this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.
 
-cmake_minimum_required(VERSION 3.10.2) # version supported by android studio
+cmake_minimum_required(VERSION 3.20) # C++20 support required
 project(bgfx)
 cmake_policy(SET CMP0054 NEW)
 
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
-set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)