fastboot: implement fastbootd in twrp

fastbootd is a userspace daemon that runs in the recovery
ramdisk. It allows writing single partitions to the super
partition via fastboot CLI. When TWRP sees the fastboot option
in the misc partition during startup, it will start with
the fastbootd page and fastbootd running. Otherwise it will
run recovery normally.

Change-Id: Id7b12d29ef21dbd5950dc884dd1cd788f25357f0
diff --git a/gui/objects.hpp b/gui/objects.hpp
old mode 100644
new mode 100755
index 24e9d24..ccfc522
--- a/gui/objects.hpp
+++ b/gui/objects.hpp
@@ -371,7 +371,8 @@
 	int uninstalltwrpsystemapp(std::string arg);
 	int repackimage(std::string arg);
 	int fixabrecoverybootloop(std::string arg);
-
+	int enableadb(std::string arg);
+	int enablefastboot(std::string arg);
 	int simulate;
 };