Add files via upload

groundplane.h

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+/*
+Copyright (C) 2021  Thomas Kummer
+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/>.
+*/
+
+#ifndef GROUNDPLANE_H_
+#define GROUNDPLANE_H_
+
+void gp_calc();
+void gp_print();
+
+#endif // GROUNDPLANE_H_