Add CI workflow

.github/FUNDING.yml

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+github: flobernd

.github/workflows/main.yml

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+name: GitHub Actions CI
+
+on: [push, pull_request]
+
+jobs:
+  build-linux:
+    name: Build ${{ matrix.platform.name }} ${{ matrix.compiler.name }} ${{ matrix.flavor }} (${{ matrix.mode.name }})
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: 
+          - { name: x86, flags: "-m32" }
+          - { name: x64, flags: "-m64" }
+        compiler:
+          - { name: GNU,  CC: gcc-10,   CXX: g++-10,    }
+          - { name: LLVM, CC: clang-10, CXX: clang++-10 }
+        flavor: [ Debug, Release ]
+        mode: 
+          - { name: default, args: ""                }
+          - { name: NO_LIBC, args: -DZYAN_NO_LIBC=ON }
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - if: matrix.platform.name == 'x86'
+        name: Bootstrap
+        run: |
+          sudo dpkg --add-architecture i386
+          sudo rm /etc/apt/sources.list.d/* && sudo apt-get update
+          sudo apt-get install -y g++-multilib g++-10-multilib
+
+      - name: Configure
+        env:
+          CC: ${{ matrix.compiler.CC }}
+          CXX: ${{ matrix.compiler.CXX }}
+        run: |
+          mkdir build
+          cd build
+          cmake -DCMAKE_C_FLAGS=${{ matrix.platform.flags }} -DCMAKE_CXX_FLAGS=${{ matrix.platform.flags }} -DZYAN_DEV_MODE=ON ${{ matrix.mode.args }} ..
+          
+      - name: Build
+        run: |
+          cmake --build build --config ${{ matrix.flavor }}
+
+  build-windows:
+    name: Build ${{ matrix.platform.name }} ${{ matrix.compiler.name }} ${{ matrix.flavor }} (${{ matrix.mode.name }})
+    runs-on: windows-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        platform: 
+          - { name: x86, flags: "Win32" }
+          - { name: x64, flags: "x64"   }
+        compiler:
+          - { name: MSVC }
+        flavor: [ Debug, Release ]
+        mode: 
+          - { name: default, args: ""                }
+          - { name: NO_LIBC, args: -DZYAN_NO_LIBC=ON }
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Configure
+        run: |
+          mkdir build
+          cd build
+          cmake -DCMAKE_GENERATOR_PLATFORM=${{ matrix.platform.flags }} -DZYAN_DEV_MODE=ON ${{ matrix.mode.args }} ..
+          
+      - name: Build
+        run: |
+          cmake --build build --config ${{ matrix.flavor }}

README.md

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 # Zyan Core Library for C
 
+<a href="./LICENSE"><img src="https://img.shields.io/badge/License-MIT-blue.svg" alt="License: MIT"></a>
+<a href="https://github.com/zyantific/zycore-c/actions"><img src="https://github.com/zyantific/zycore-c/workflows/GitHub%20Actions%20CI/badge.svg" alt="GitHub Actions"></a>
+<a href="https://discord.zyantific.com/"><img src="https://img.shields.io/discord/390136917779415060.svg?logo=discord&label=Discord" alt="Discord"></a>
+
 Internal library providing platform independent types, macros and a fallback for environments without LibC.
 
 ## Features