Project: Resume work on engine, lots of changes

Back on the grind, lots was changed to work with latest C++20 modules improvements and C++23 features.

Developing this was done on clang-18 + libc++, GCC isn't there just yet and libc++ provided better support for fancy things.

- Thread class was mostly rewritten to be simpler, mutex-less and to be consistent.
- Migrated from vcpkg to CPM, vcpkg was causing way too many issues and CPM is essentially a wrapper around FetchContent which I like.
- ThreadPool was removed completely, once C++'s <execution> becomes more widely available, I feel we can make Thread class do it all.
- Logging now uses <print>, neat little thing!

.clang-format

@@ -1,65 +1,21 @@
+Language: Cpp
 BasedOnStyle: LLVM
-AccessModifierOffset: -4
-AlignAfterOpenBracket: Align
-AlignConsecutiveAssignments: None
-AlignOperands: Align
-AllowAllArgumentsOnNextLine: false
-AllowAllParametersOfDeclarationOnNextLine: false
-AllowShortBlocksOnASingleLine: Empty
-AllowShortCaseLabelsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: Empty
-AllowShortIfStatementsOnASingleLine: Never
-AllowShortLambdasOnASingleLine: Empty
-AllowShortLoopsOnASingleLine: false
-AlwaysBreakAfterReturnType: None
-AlwaysBreakTemplateDeclarations: Yes
-BreakBeforeBraces: Custom
-BraceWrapping:
-  AfterCaseLabel: false
-  AfterClass: false
-  AfterControlStatement: Never
-  AfterEnum: false
-  AfterFunction: false
-  AfterNamespace: false
-  AfterUnion: false
-  BeforeCatch: false
-  BeforeElse: false
-  IndentBraces: false
-  SplitEmptyFunction: false
-  SplitEmptyRecord: true
-BreakBeforeBinaryOperators: None
-BreakBeforeTernaryOperators: true
-BreakConstructorInitializers: BeforeColon
-BreakInheritanceList: BeforeColon
+# Give us some space
 ColumnLimit: 100
-CompactNamespaces: false
-ContinuationIndentWidth: 8
-IndentCaseLabels: true
-IndentPPDirectives: AfterHash
+# Don't change our includes (order matters!)
+SortIncludes: Never
+# Tabs please! - With 4-space width
+UseTab: Always
+TabWidth: 4
 IndentWidth: 4
-KeepEmptyLinesAtTheStartOfBlocks: false
-MaxEmptyLinesToKeep: 2
+AccessModifierOffset: -4
+# Indents in namespaces
 NamespaceIndentation: All
-ObjCSpaceAfterProperty: false
-ObjCSpaceBeforeProtocolList: true
-PointerAlignment: Right
-ReflowComments: true
-SpaceAfterCStyleCast: false
-SpaceAfterLogicalNot: false
-SpaceAfterTemplateKeyword: false
-SpaceBeforeAssignmentOperators: true
-SpaceBeforeCpp11BracedList: true
-SpaceBeforeCtorInitializerColon: true
-SpaceBeforeInheritanceColon: true
-SpaceBeforeParens: ControlStatements
-SpaceBeforeRangeBasedForLoopColon: true
-SpaceInEmptyParentheses: false
-SpacesBeforeTrailingComments: 1
-SpacesInAngles: false
-SpacesInCStyleCastParentheses: false
-SpacesInContainerLiterals: false
-SpacesInParentheses: false
-SpacesInSquareBrackets: false
-TabWidth: 4
-UseTab: Always
-PackConstructorInitializers: BinPack
+# Newline after template
+AlwaysBreakTemplateDeclarations: Yes
+# Don't indent "requires" lines
+IndentRequiresClause: false
+# Allow single while loops without braces
+AllowShortLoopsOnASingleLine: true
+AllowShortBlocksOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: WithoutElse

.clang-tidy

@@ -1,15 +1,8 @@
 Checks: '-*,
 bugprone-*,
-cppcoreguidelines-*
--cppcoreguidelines-avoid-magic-numbers,
--cppcoreguidelines-prefer-member-initializer,
 modernize-*,
+mpi-*,
 portability-*,
-performance-*,
-readability-*,
--readability-identifier-length,
-misc-*,
--readability-magic-numbers,
--readability-braces-around-statements'
+performance-*'
 
 WarningsAsErrors: '*'

.github/workflows/build.yml

@@ -8,6 +8,9 @@ on:
     paths-ignore: [ "**.md" ]
     branches: [ "master", "release/**" ]
 
+env:
+  BUILD_TYPE: Release
+
 jobs:
   windows_build:
     name: "Build - Windows (MSVC)"
@@ -16,24 +19,16 @@ jobs:
     steps:
       - name: "Checkout"
         uses: actions/checkout@v3
-        with:
-          submodules: recursive
-          fetch-depth: 0
 
       - name: "Setup MSBuild"
-        uses: microsoft/setup-msbuild@v1
+        uses: microsoft/setup-msbuild@v2
         with:
           vs-prerelease: true
           msbuild-architecture: x64
 
       - name: "Setup CMake"
         uses: lukka/get-cmake@latest
 
-      - name: "Run vcpkg"
-        uses: lukka/run-vcpkg@v11
-        with:
-          vcpkgJsonGlob: "vcpkg.json"
-
       - name: "Run CMake"
         uses: lukka/run-cmake@v10
         with: