Add initial prototype.

1-base/math/applet/demo/basic/basic_math_demo.gpr

@@ -0,0 +1,26 @@
+with
+     "math";
+
+project Basic_Math_Demo
+is
+   for Object_Dir use "build";
+   for Exec_Dir   use ".";
+   for Main       use ("launch_basic_math_demo.adb");
+
+   package Builder is
+      for Default_Switches ("ada") use ("-g");
+   end Builder;
+
+   package Compiler is
+      for Default_Switches ("ada") use ("-gnat2022");
+   end Compiler;
+
+   package Binder is
+      for Default_Switches ("ada") use ("-E");
+   end Binder;
+
+   package Linker is
+      for Default_Switches ("ada") use ("-g");
+   end Linker;
+
+end Basic_Math_Demo;