Add Summerset Isle (loot/skyrimse#2575)

* Add plugins
  * To 'Locations - New Lands' section.
  * Adds a new land.

* Add location
  * https://www.nexusmods.com/skyrimspecialedition/mods/72004/

* Add C.Music tag
  * Changes music type in 00015220, 0001AEC3.

* Add cleaning data
  * v1.52.
  * Dirty edits in Fixes are mostly for SI plugin & therefore not an
    issue (including all deleted navmeshes, hence `quickClean`). There
    are at least a few for vanilla masters, so still worth reporting.

masterlist.yaml

@@ -16915,6 +16915,26 @@ plugins:
         util: '[SSEEdit v4.0.2f](https://www.nexusmods.com/skyrimspecialedition/mods/164)'
         itm: 5
 
+  - name: 'summerset(isl|Fix)es\.esp'
+    url:
+      - link: 'https://www.nexusmods.com/skyrimspecialedition/mods/72004/'
+        name: 'Summerset Isle'
+  - name: 'summersetisles.esp'
+    dirty:
+      - <<: *quickClean
+        crc: 0x3F84C631
+        util: '[SSEEdit v4.0.4c](https://www.nexusmods.com/skyrimspecialedition/mods/164)'
+        itm: 2925
+  - name: 'SummersetFixes.esp'
+    tag: [ C.Music ]
+    dirty:
+      - <<: *quickClean
+        crc: 0x1102AE68
+        util: '[SSEEdit v4.0.4c](https://www.nexusmods.com/skyrimspecialedition/mods/164)'
+        itm: 689
+        udr: 1430
+        nav: 20
+
   - name: 'SurSummerAssault - Stormcloak.esp'
     url: [ 'https://www.nexusmods.com/skyrimspecialedition/mods/42715/' ]
     dirty: