Added physics saved settings.

Emerald physics demoted to legacy. Only enabled on av's that fail to send physics paramaters, or AvatarPhysics is completely disabled.
Params reset when AvatarPhysics is toggled off. (Bugfix for LL's code)

indra/newview/app_settings/settings.xml

@@ -1739,6 +1739,17 @@
       <key>Value</key>
       <integer>2</integer>
     </map>
+    <key>AvatarPhysics</key>
+    <map>
+      <key>Comment</key>
+      <string>Enable avatar wearable physics.</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>Boolean</string>
+      <key>Value</key>
+      <integer>1</integer>
+    </map>
     <key>AvatarSex</key>
     <map>
       <key>Comment</key>
@@ -8842,6 +8853,17 @@
       <key>Value</key>
       <integer>35</integer>
     </map>
+    <key>RenderAvatarPhysicsLODFactor</key>
+    <map>
+      <key>Comment</key>
+      <string>Controls level of detail of avatar physics (such as breast physics).</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>F32</string>
+      <key>Value</key>
+      <integer>1.0</integer>
+    </map>
     <key>RenderAvatarInvisible</key>
     <map>
       <key>Comment</key>