f0rmz: new subproject to create a form/wizard setup thing

shared/terminal.h

@@ -0,0 +1,25 @@
+/**
+ * Copyright 2021 Johannes Marbach
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+
+#ifndef BBX_TERMINAL_H
+#define BBX_TERMINAL_H
+
+#include <stdbool.h>
+
+/**
+ * Prepare the current TTY for graphics output.
+ *
+ * @param enable_graphics_mode if true, switch terminal into graphics mode (hides command prompt)
+ * @param disable_keyboard_input if true, disable terminal keyboard input (hides entered text)
+ */
+void bbx_terminal_prepare_current_terminal(bool enable_graphics_mode, bool disable_keyboard_input);
+
+/**
+ * Reset the current TTY to text output.
+ */
+void bbx_terminal_reset_current_terminal(void);
+
+#endif /* BBX_TERMINAL_H */