Set up a Visual Studio project and tweak things until it compiles

- It doesn't link yet, but that was expected
- Fixed some issues with global variables having different types in different files.

src/pcedit/pc.action.cpp

@@ -30,7 +30,7 @@ extern cUniverse univ;
 //extern long ed_flag,ed_key;
 
 extern sf::RenderWindow mainPtr;
-extern bool file_in_mem;
+extern fs::path file_in_mem;
 //extern long register_flag;
 
 extern sf::Texture pc_gworld;
@@ -63,7 +63,7 @@ bool handle_action(sf::Event event) {
 	
 	the_point = {event.mouseButton.x, event.mouseButton.y};
 	
-	if(!file_in_mem)
+	if(file_in_mem.empty())
 		return false;
 	
 	for(i = 0; i < 6; i++)

src/pcedit/pc.global.cpp

@@ -1,85 +0,0 @@
-//#include <OSUtils.h>
-#include <Carbon/Carbon.h>
-#include "ed.global.h"
-#include "math.h"
-
-extern short give_delays;
-
-short get_ran (short times,short  min,short  max)
-{
-	long int store;
-	short i, to_ret = 0;
-	
-	for (i = 1; i < times + 1; i++) {
-		store = Random();
-		to_ret = to_ret + min + (((store + 32767) * (max - min + 1)) / 65536);
-		}
-	return to_ret;
-}
-
-Boolean same_point(location p1,location p2)
-{
-	if ((p1.x == p2.x) & (p1.y == p2.y))
-		return TRUE;
-		else return FALSE;
-}
-
-short move_to_zero(short val)
-{
-	if (val < 0)
-		return val + 1;
-	if (val > 0)
-		return val - 1;
-	return val;
-}
-
-short max(short a,short b)
-{
-	if (a > b)
-		return a;
-		else return b;
-}
-
-short min(short a,short b)
-{
-	if (a < b)
-		return a;
-		else return b;
-}
-
-short minmax(short min,short max,short k)
-{
-	if (k < min)
-		return min;
-	if (k > max)
-		return max;
-	return k;
-}
-
-short s_pow(short x,short y)
-{
-	return (short) pow((double) x, (double) y);
-}
-
-short a_v(short x)
-{
-	if (x < 0)
-		return (-1 * x);
-		else return x;
-}
-short ex_abs(short x)
-{
-	if (x < 0)
-		return (-1 * x);
-		else return x;
-}
-
-void BoEpause(short length)
-{
-	unsigned long dummy,len;
-	
-	len = (unsigned long)length;
-	
-	if (give_delays == 0)
-		Delay(len, &dummy);
-}