Rename StreamTexture* to CompressedTexture*

* Its not and will not be used for streaming.
* Streaming will be implemented in 4.1 and it will work different.
* It makes more sense to be called CompressedTexture since it imports and compresses texture files.

doc/classes/CompressedTextureLayered.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<class name="CompressedTextureLayered" inherits="TextureLayered" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
+	<brief_description>
+	</brief_description>
+	<description>
+	</description>
+	<tutorials>
+	</tutorials>
+	<methods>
+		<method name="load">
+			<return type="int" enum="Error" />
+			<argument index="0" name="path" type="String" />
+			<description>
+			</description>
+		</method>
+	</methods>
+	<members>
+		<member name="load_path" type="String" setter="load" getter="get_load_path" default="&quot;&quot;">
+		</member>
+	</members>
+</class>