Created Github CI build action

.github/workflows/build.yml

@@ -0,0 +1,73 @@
+# Name of the GitHub Action
+name: Build scipion-chem on Pull Request
+
+# Specify when the Action should be triggered: when a pull request is opened against the 'devel' or 'master' branch
+on:
+  pull_request:
+    branches: [devel, master]
+
+# Define the job that should be run
+jobs:
+  build:
+    # Specify the machine to run the job on
+    runs-on: ubuntu-latest
+
+    # Define the steps to be taken in the job
+    steps:
+    # Getting current test time
+    - name: Get current time
+      uses: josStorer/get-current-time@v2
+      id: current-time
+      with:
+        format: YYYYMMDD-HH
+        utcOffset: "+02:00"
+
+    # Using current time to view test time (for debugging purposes)
+    - name: Use current time
+      env:
+        R_TIME: "${{ steps.current-time.outputs.readableTime }}"
+      run: echo $R_TIME
+
+    # Installing wget, needed for downloading some dependencies
+    - name: Install wget
+      run: |
+        # Update package lists and install wget
+        sudo apt-get update && \
+        sudo apt-get install -y wget
+    
+    # Installing Miniconda
+    - name: Install Miniconda
+      working-directory: ${{ github.workspace }}/../
+      run: |
+        wget https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh && \
+        bash Miniconda3-latest-Linux-x86_64.sh -b -p ${{ github.workspace }}/../miniconda/ && \
+        source ./miniconda/etc/profile.d/conda.sh
+    
+    # Installing Scipion
+    - name: Install Scipion with dependencies
+      working-directory: ${{ github.workspace }}/../
+      run: |
+        sudo apt-get install -y gcc-10 g++-10 libopenmpi-dev make && \
+        eval "$(${{ github.workspace }}/../miniconda/bin/conda shell.bash hook)" && \
+        pip3 install --user scipion-installer && \
+        python3 -m scipioninstaller -conda -noXmipp -noAsk ${{ github.workspace }}/../scipion
+      
+    # Install scipion-chem
+    - name: Install scipion-chem
+      working-directory: ${{ github.workspace }}/../
+      run: |
+        git clone https://github.com/scipion-chem/scipion-chem.git && \
+        scipion/scipion3 installp -p scipion-chem --devel
+    
+    # Check out the repository in the pull request
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      with:
+        ref: ${{ github.head_ref }}
+
+    # Install plugin from the pull request using the Scipion3 installp command
+    - name: Install plugin from pull request
+      working-directory: ${{ github.workspace }}
+      run: |
+        # Install the repository from the pull request
+        ../scipion/scipion3 installp -p . --devel