Refresh the license display patches

They have been partially obsoleted by the following pull request
upstream:

  https://github.com/obsproject/obs-studio/pull/1435

debian/patches/0006-Add-SONAME.patch

@@ -0,0 +1,24 @@
+From: Sebastian Ramacher <sramacher@debian.org>
+Date: Sun, 16 Dec 2018 17:38:34 +0100
+Subject: Add SONAME
+
+---
+ deps/obs-scripting/CMakeLists.txt | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/deps/obs-scripting/CMakeLists.txt b/deps/obs-scripting/CMakeLists.txt
+index dff5370..a79d1f0 100644
+--- a/deps/obs-scripting/CMakeLists.txt
++++ b/deps/obs-scripting/CMakeLists.txt
+@@ -172,6 +172,11 @@ if(UNIX)
+ 	PROPERTIES COMPILE_FLAGS "-fvisibility=hidden")
+ endif()
+ 
++set_target_properties(obs-scripting PROPERTIES
++	OUTPUT_NAME obs-scripting
++	VERSION "0"
++	SOVERSION "0")
++
+ target_link_libraries(obs-scripting
+ 	libobs
+ 	${LUAJIT_LIBRARIES}