config-parser: export functions to open a config file
The in-tree clients can access the functions via libshared, but they are currently not available for external clients, such as custom shell helper applications similar to weston-desktop-shell or weston-ivi-shell-user-interface. The functions to read the content of the config are already exported.
Signed-off-by: Michael Olbrich m.olbrich@pengutronix.de