feat(Logging): show validation issues in a seperate diagnostics pane (#286)

* feat(foundation): add new custom event issue

* feat(Hosting): add statusNumber to validator API

* feat(Plugging): add pluginId property to plugins

* feat(Logging): add daignostics pane

* rebase(validators/): split messages send tp log adn diagnostics pane

* test(validator/): update tests

* feat(Logging): add snackbar indiacating new issues in diagnistics

* feat(logging): display validator name in diagnostics

* feat(validatetemplates): log validation warnings as issues

* fix(wizards/lnode): adapt to filtered-list base class change

* refactor(Logging): make getPluginName bit more robust

* test: fix several failing tests

Co-authored-by: Christian Dinkel <[email protected]>

Author: JakobVogelsang

__snapshots__/ValidateSchema plugin.md

@@ -0,0 +1,109 @@
+# `ValidateSchema plugin`
+
+## `for valid SCL files`
+
+####   `zeroissues indiacation looks like the latest snapshot`
+
+```html
+<mwc-dialog
+  heading="Diagnostics"
+  id="diagnostic"
+>
+  <filtered-list
+    id="content"
+    wrapfocus=""
+  >
+    <mwc-list-item
+      aria-disabled="true"
+      disabled=""
+      graphic="icon"
+      mwc-list-item=""
+      tabindex="0"
+    >
+      <span>
+        Issues found during validation will show up here
+      </span>
+      <mwc-icon slot="graphic">
+        info
+      </mwc-icon>
+    </mwc-list-item>
+  </filtered-list>
+  <mwc-button
+    dialogaction="close"
+    slot="primaryAction"
+  >
+    Close
+  </mwc-button>
+</mwc-dialog>
+
+```
+
+## `for invalid SCL files`
+
+####   `pushes issues to the diagnostics pane that look like the latest snapshot`
+
+```html
+<mwc-dialog
+  heading="Diagnostics"
+  id="diagnostic"
+>
+  <filtered-list
+    id="content"
+    wrapfocus=""
+  >
+    <mwc-list-item
+      aria-disabled="false"
+      noninteractive=""
+      tabindex="-1"
+    >
+      Validate project
+    </mwc-list-item>
+    <li
+      divider=""
+      padded=""
+      role="separator"
+    >
+    </li>
+    <abbr title="The attribute 'name' is required but missing.
+invalid2007B:7 Substation name (Element '{http://www.iec.ch/61850/2003/SCL}Substation')">
+      <mwc-list-item
+        aria-disabled="false"
+        mwc-list-item=""
+        tabindex="-1"
+        twoline=""
+      >
+        <span>
+          The attribute 'name' is required but missing.
+        </span>
+        <span slot="secondary">
+          invalid2007B:7 Substation name (Element '{http://www.iec.ch/61850/2003/SCL}Substation')
+        </span>
+      </mwc-list-item>
+    </abbr>
+    <abbr title="Not all fields of key identity-constraint '{http://www.iec.ch/61850/2003/SCL}SubstationKey' evaluate to a node.
+invalid2007B:7 Substation key identity-constraint '{http://www.iec.ch/61850/2003/SCL}SubstationKey' (Element '{http://www.iec.ch/61850/2003/SCL}Substation')">
+      <mwc-list-item
+        aria-disabled="false"
+        mwc-list-item=""
+        tabindex="-1"
+        twoline=""
+      >
+        <span>
+          Not all fields of key identity-constraint '{http://www.iec.ch/61850/2003/SCL}SubstationKey' evaluate to a node.
+        </span>
+        <span slot="secondary">
+          invalid2007B:7 Substation key identity-constraint '{http://www.iec.ch/61850/2003/SCL}SubstationKey' (Element '{http://www.iec.ch/61850/2003/SCL}Substation')
+        </span>
+      </mwc-list-item>
+    </abbr>
+  </filtered-list>
+  <mwc-button
+    dialogaction="close"
+    slot="primaryAction"
+  >
+    Close
+  </mwc-button>
+</mwc-dialog>
+
+```
+