created display header file

only begin and print for now

display.hpp

@@ -0,0 +1,23 @@
+/*
+This is part of RadiationMapping
+Copyright (C) 2024 Václav Šmejkal
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+namespace display
+{
+    void begin(void); //INIT LCD DISPLAY
+    void print(String line_1, String line_2); //PRINT INTO LCD (OVERWRITING)
+}