Move CrawlNum to CrawlTable and make it extern visible

Source/lighting.cpp

@@ -414,6 +414,8 @@ const int8_t CrawlTable[2749] = {
 	// clang-format on
 };
 
+const int CrawlNum[19] = { 0, 3, 12, 45, 94, 159, 240, 337, 450, 579, 724, 885, 1062, 1255, 1464, 1689, 1930, 2187, 2460 };
+
 /*
  * X- Y-coordinate offsets of lighting visions.
  * The last entry-pair is only for alignment.

Source/lighting.h

@@ -74,6 +74,7 @@ void lighting_color_cycling();
 /* rdata */
 
 extern const int8_t CrawlTable[2749];
+extern const int CrawlNum[19];
 extern const uint8_t VisionCrawlTable[23][30];
 
 } // namespace devilution

Source/missiles.cpp

@@ -36,8 +36,6 @@ namespace {
 ChainStruct chain[MAXMISSILES];
 int numchains;
 
-const int CrawlNum[19] = { 0, 3, 12, 45, 94, 159, 240, 337, 450, 579, 724, 885, 1062, 1255, 1464, 1689, 1930, 2187, 2460 };
-
 int AddClassHealingBonus(int hp, HeroClass heroClass)
 {
 	switch (heroClass) {

test/lighting_test.cpp

@@ -7,8 +7,6 @@ using namespace devilution;
 
 TEST(Lighting, CrawlTables)
 {
-	int CrawlNum[19] = { 0, 3, 12, 45, 94, 159, 240, 337, 450, 579, 724, 885, 1062, 1255, 1464, 1689, 1930, 2187, 2460 };
-
 	bool added[40][40];
 	memset(added, 0, sizeof(added));