Finish initial 3.75m redo (#12)

* New models and animations for 3.75m parts

Distribution/Restock/GameData/ReStock/Patches/Structural/restock-structural-375.cfg

@@ -1,3 +1,14 @@
 // Patches applying art changes to 3.75m structural parts
 // Contents:
 // - Kerbodyne ADTP-2-3 (Size3to2Adapter)
+
+@PART[Size3to2Adapter] {
+  @author = Chris Adderley
+
+  !mesh = DELETE
+  !MODEL = {}
+  MODEL {
+    model = ReStock/Assets/FuelTank/restock-adapter-375-solid-1
+  }
+  %rescaleFactor = 1
+}