Maverick2797/advtrains_switchpanel: Example library and textures to be able to use the digistuff touchscreen as a control panel for an advtrains yard

Maverick2797 4a6fbc92f7 Added diagonal switch icons		3 éve
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switchpanel_background.png	7f133e237d Make ready for use	3 éve
switchpanel_corner.png	07f0e463b0 Add corner and EOL icon	3 éve
switchpanel_diag.png	7f133e237d Make ready for use	3 éve
switchpanel_eol.png	07f0e463b0 Add corner and EOL icon	3 éve
switchpanel_line.png	7f133e237d Make ready for use	3 éve
switchpanel_switch_CR.png	7f133e237d Make ready for use	3 éve
switchpanel_switch_ST.png	7f133e237d Make ready for use	3 éve
switchpanel_switch_diag_CR.png	4a6fbc92f7 Added diagonal switch icons	3 éve
switchpanel_switch_diag_ST.png	4a6fbc92f7 Added diagonal switch icons	3 éve