Provide optional dependencies for opm

Author: daavid00

Diff for: .github/workflows/CI.yml

@@ -41,11 +41,10 @@ jobs:
       run: |
         pip install --upgrade pip setuptools wheel
         pip install -r dev-requirements.txt
-        pip install opm
         
     - name: Install pyopmspe11
       run: |
-        pip install .
+        pip install .[opm]
         
     - name: Check code style and linting 
       run: |

Diff for: docs/_sources/installation.rst.txt

@@ -51,6 +51,8 @@ install the Python requirements in a virtual environment with the following comm
 
     **pip install opm**
 
+    This is equivalent to execute **pip install -e .[opm]** in the installation process.  
+
     For not macOS users, to install the dependencies used for the figure's LaTeX formatting, execute 
 
     **sudo apt-get install texlive-fonts-recommended texlive-fonts-extra dvipng cm-super**

Diff for: docs/installation.html

@@ -132,6 +132,7 @@ <h2>Python package<a class="headerlink" href="#python-package" title="Link to th
 to <a class="reference external" href="https://github.com/equinor/resdata">resdata</a>, both are use to read OPM output files; while resdata is easier to
 install in macOS, opm seems to be faster), execute in the terminal</p>
 <p><strong>pip install opm</strong></p>
+<p>This is equivalent to execute <strong>pip install -e .[opm]</strong> in the installation process.</p>
 <p>For not macOS users, to install the dependencies used for the figure’s LaTeX formatting, execute</p>
 <p><strong>sudo apt-get install texlive-fonts-recommended texlive-fonts-extra dvipng cm-super</strong></p>
 <p>For macOS users, see <a class="reference internal" href="#macos"><span class="std std-ref">Source build in macOS</span></a>.</p>

Diff for: docs/searchindex.js

@@ -51,6 +51,8 @@ install the Python requirements in a virtual environment with the following comm
 
     **pip install opm**
 
+    This is equivalent to execute **pip install -e .[opm]** in the installation process.  
+
     For not macOS users, to install the dependencies used for the figure's LaTeX formatting, execute 
 
     **sudo apt-get install texlive-fonts-recommended texlive-fonts-extra dvipng cm-super**

Diff for: docs/text/installation.rst

@@ -50,4 +50,7 @@ Repository = "https://github.com/cssr-tools/pyopmspe11"
 
 [tool.setuptools]
 packages.find.where = ["src"]
-platforms = ["all"]
+platforms = ["all"]
+
+[project.optional-dependencies]
+opm = ["opm"]