Try out cibuildwheel (#1)

Setup cibuildwheel to build wheels for linux and macos

.github/workflows/build.yml

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+name: Build
+
+on: [push, pull_request]
+
+jobs:
+  build_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-18.04, macos-latest]
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-python@v2
+        name: Install Python
+        with:
+          python-version: '3.7'
+
+      - name: Install cibuildwheel
+        run: |
+          python3 -m pip install cibuildwheel==1.6.4
+
+      - name: Install Visual C++ for Python 2.7
+        if: runner.os == 'Windows'
+        run: |
+          choco install vcpython27 -f -y
+
+      - name: Build Linux wheels
+        if: runner.os == 'Linux'
+        env:
+          CIBW_BEFORE_ALL: 'pwd && ls && chmod +x ./scripts/setup-linux.sh && ./scripts/setup-linux.sh'
+          CIBW_BUILD: cp3?-*
+          CIBW_SKIP: "cp35-* *-win32 *-manylinux_i686 *-manylinux_aarch64 *-manylinux_ppc64le *-manylinux_s390x"
+        run: |
+          python3 -m cibuildwheel --output-dir wheelhouse
+
+      - name: Build macOS wheels
+        if: runner.os == 'macOS'
+        env:
+          CIBW_BEFORE_ALL: 'pwd && ls && chmod +x ./scripts/setup-macos.sh && ./scripts/setup-macos.sh'
+          CIBW_BUILD: cp3?-*
+          CIBW_SKIP: "cp35-* *-win32 *-manylinux_i686 *-manylinux_aarch64 *-manylinux_ppc64le *-manylinux_s390x"
+        run: |
+          python3 -m cibuildwheel --output-dir wheelhouse
+
+      - uses: actions/upload-artifact@v2
+        with:
+          path: ./wheelhouse/*.whl

scripts/setup-linux.sh

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+#!/bin/bash
+if [ ! -f "/usr/bin/go" ]; then
+    curl -vvv -L -O https://golang.org/dl/go1.15.5.linux-amd64.tar.gz
+    tar -xf go1.15.5.linux-amd64.tar.gz
+    mv go /usr/local
+    ln -s /usr/local/go/bin/go /usr/bin/go
+fi

scripts/setup-macos.sh

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+#!/bin/bash
+if [ ! -f "/usr/local/bin/go" ]; then
+    curl -vvv -L -O https://golang.org/dl/go1.15.5.darwin-amd64.tar.gz
+    tar -xf go1.15.5.darwin-amd64.tar.gz
+    mv go /tmp
+    ln -s /tmp/go/bin/go /usr/local/bin/go
+fi