Add MeasureToolSettings.asset from MRGT (#1037)

Create MeasureToolSettings.asset

Author: keveleigh

UnityProjects/MRTKDevTemplate/Assets/Editor/MeasureToolSettings.asset

@@ -0,0 +1,24 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: e2305b64eca01f242a846e72381b866c, type: 3}
+  m_Name: MeasureToolSettings
+  m_EditorClassIdentifier: 
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+  unit: 0
+  scale: 0
+  lineColor: {r: 0, g: 0, b: 0, a: 1}
+  handlesSize: 0.01
+  handlesColor: {r: 1, g: 1, b: 1, a: 1}
+  textSize: 16
+  textColor: {r: 1, g: 0.92156863, b: 0.015686275, a: 1}
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+  lineThickness: 4