get rid of console thread for OpenRecoveryScript

- CLI commands run in a threaded action "twcmd"
- Console is displayed via "singleaction_page"
- move ORS execution code from GUI action to OpenRecoveryScript class
- remove unused function gui_changePackage
- don't change PageManager package in home action
- fix that /tmp/openrecoveryscript was not deleted after execution

Change-Id: Ic688c0b04647ce09e9db979b0bc5123f47cf4f70
diff --git a/gui/objects.hpp b/gui/objects.hpp
index 438905b..ebf08a8 100644
--- a/gui/objects.hpp
+++ b/gui/objects.hpp
@@ -366,6 +366,7 @@
 	int checkpartitionlifetimewrites(std::string arg);
 	int mountsystemtoggle(std::string arg);
 	int setlanguage(std::string arg);
+	int twcmd(std::string arg);
 
 	int simulate;
 };