Added a build_pipe app, which builds pipes. Additionally the fvcircles

module checks for n iterations of building a circle

Underwater_Base/build_pipe.lua

@@ -21,7 +21,7 @@ local imaterial = read()
 print("Building a " .. pipes .. " blocks long tunnel")
 for i = 1, pipes do
   turtle.down()
-  fvcircles.fvcircle5(omaterial, imaterial)
+  fvcircles.fvcircle5(omaterial, imaterial, pipes)
 end
 
 print("Done build the tunnel")