Write install commands for the library and header files

Targets/Install/CMakeLists.txt

@@ -0,0 +1,29 @@
+#
+# Install library
+#
+
+install(
+        FILES ${CMAKE_BINARY_DIR}/${LIBWEBRTC_LIBRARY}
+        DESTINATION ${LIBWEBRTC_INSTALL_LIB_DIR}
+        COMPONENT Libraries
+)
+
+#
+# Install headers
+#
+
+file(
+        GLOB_RECURSE header_files
+        RELATIVE ${CMAKE_BINARY_DIR}/src
+        FOLLOW_SYMLINKS
+        ${CMAKE_BINARY_DIR}/src/webrtc/*.h
+)
+
+foreach(f ${header_files})
+    get_filename_component(RELATIVE_PATH ${f} DIRECTORY)
+    install(
+            FILES ${CMAKE_BINARY_DIR}/src/${f}
+            DESTINATION ${LIBWEBRTC_INSTALL_INCLUDE_DIR}/${RELATIVE_PATH}
+            COMPONENT Headers
+    )
+endforeach()