[Misc] Performance improvements, SMIRKS Coverage, Minor Bugfixes (#132)

Bump Python Version to 3.12
Make use of "epauth" optional
Cache `srs` property of rules to speed up apply
Adjust view names for use of `reverse()`
Fix Views for Scenario Attachments
Added Simply Compare View/Template to identify differences between rdkit and ambit
Make migrations consistent with tests + compare
Fixes #76
Set default year for Scenario Modal
Fix html tags for package description
Added Tests for Pathway / Rule
Added remove stereo for apply

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#132

templates/objects/package.html

@@ -29,7 +29,7 @@
             </div>
         </div>
         <div class="panel-body">
-            <p> {{ package.description }} </p>
+            <p> {{ package.description|safe }} </p>
         </div>
         <ul class="list-group">
             <li class="list-group-item">