Implemented directive in flagpole compiler and added it into programs

flagpole/tests/stdhw.fp

@@ -0,0 +1,5 @@
+$inc fvmstd.fp
+
+proc main
+  "Hello World!" :puts :newline
+endproc

flagpole/tests/truthmachine.fp

@@ -1,27 +1,8 @@
-proc putchar
-  0xCFFFFFFFFFFFFFFD st8
-endproc
-
-proc getchar
-  0xCFFFFFFFFFFFFFFE ld8
-endproc
-
-proc puts
-  while dup ld8 0 == not do
-    dup ld8 :putchar
-    1 u+
-  endwhile
-  pop
-endproc
-
-proc newline
-  10 :putchar
-endproc
+$inc fvmstd.fp
 
 proc main
   :getchar
-  dup :putchar
   while dup "1" ld8 == do
     dup :putchar
   endwhile
-endproc
+endproc