[lldb/Commands] Add command options for ScriptedProcess to ProcessLaunch
This patch adds a new command options to the CommandObjectProcessLaunch
for scripted processes.
Among the options, the user need to specify the class name managing the
scripted process. The user can also use a key-value dictionary holding
arbitrary data that will be passed to the managing class.
This patch also adds getters and setters to SBLaunchInfo for the
class name managing the scripted process and the dictionary.
Signed-off-by: Med Ismail Bennani <firstname.lastname@example.org>