Console log output (#74)

The JetBrains theme API introduced new keys to customize log output in
the console that have been added to Nord:

- `LOG_DEBUG_OUTPUT` - syntax color for output of the _DEBUG_ level
  using `nord15`
- `LOG_INFO_OUTPUT` - syntax color for output of the _INFO_ level using
  `nord8`
- `LOG_VERBOSE_OUTPUT` - syntax color for verbose output using `nord7`

Resolves  GH-73

resources/themes/nord.xml

@@ -1192,6 +1192,11 @@
         <option name="FOREGROUND" value="ebcb8b" />
       </value>
     </option>
+    <option name="LOG_DEBUG_OUTPUT">
+      <value>
+        <option name="FOREGROUND" value="b48ead" />
+      </value>
+    </option>
     <option name="LOG_ERROR_OUTPUT">
       <value>
         <option name="FOREGROUND" value="bf616a" />
@@ -1202,6 +1207,16 @@
         <option name="FOREGROUND" value="616e88" />
       </value>
     </option>
+    <option name="LOG_INFO_OUTPUT">
+      <value>
+        <option name="FOREGROUND" value="88c0d0" />
+      </value>
+    </option>
+    <option name="LOG_VERBOSE_OUTPUT">
+      <value>
+        <option name="FOREGROUND" value="8fbcbb" />
+      </value>
+    </option>
     <option name="LOG_WARNING_OUTPUT">
       <value>
         <option name="FOREGROUND" value="ebcb8b" />