Add extra pack for Percht Island

This includes only those minimap files that are needed to cover Percht Island. The markers are moved to the separate pack for now.

Ref. #83, #104.

data/markers.json

@@ -3919,62 +3919,13 @@
 		"y": 32111,
 		"z": 6
 	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33742,
-		"y": 31035,
-		"z": 6
-	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33756,
-		"y": 31042,
-		"z": 6
-	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33774,
-		"y": 31036,
-		"z": 6
-	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33783,
-		"y": 31041,
-		"z": 6
-	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33800,
-		"y": 31012,
-		"z": 6
-	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33817,
-		"y": 31021,
-		"z": 6
-	},
 	{
 		"description": "",
 		"icon": "up",
 		"x": 33827,
 		"y": 31658,
 		"z": 6
 	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33835,
-		"y": 31011,
-		"z": 6
-	},
 	{
 		"description": "Furious Crater",
 		"icon": "crossmark",
@@ -11304,13 +11255,6 @@
 		"y": 32376,
 		"z": 7
 	},
-	{
-		"description": "Boat to Svargrond",
-		"icon": "flag",
-		"x": 33719,
-		"y": 31105,
-		"z": 7
-	},
 	{
 		"description": "Message in a bottle",
 		"icon": "crossmark",
@@ -11325,69 +11269,20 @@
 		"y": 31639,
 		"z": 7
 	},
-	{
-		"description": "",
-		"icon": "checkmark",
-		"x": 33730,
-		"y": 31040,
-		"z": 7
-	},
 	{
 		"description": "To NPC A Goblin Exile",
 		"icon": "down",
 		"x": 33730,
 		"y": 31733,
 		"z": 7
 	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33745,
-		"y": 31063,
-		"z": 7
-	},
-	{
-		"description": "",
-		"icon": "checkmark",
-		"x": 33756,
-		"y": 31021,
-		"z": 7
-	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33756,
-		"y": 31042,
-		"z": 7
-	},
-	{
-		"description": "",
-		"icon": "checkmark",
-		"x": 33776,
-		"y": 31023,
-		"z": 7
-	},
-	{
-		"description": "",
-		"icon": "checkmark",
-		"x": 33776,
-		"y": 31043,
-		"z": 7
-	},
 	{
 		"description": "",
 		"icon": "down",
 		"x": 33778,
 		"y": 31600,
 		"z": 7
 	},
-	{
-		"description": "",
-		"icon": "checkmark",
-		"x": 33790,
-		"y": 31061,
-		"z": 7
-	},
 	{
 		"description": "Xogixath",
 		"icon": "red down",
@@ -11430,20 +11325,6 @@
 		"y": 31551,
 		"z": 7
 	},
-	{
-		"description": "",
-		"icon": "checkmark",
-		"x": 33798,
-		"y": 31006,
-		"z": 7
-	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33800,
-		"y": 31012,
-		"z": 7
-	},
 	{
 		"description": "",
 		"icon": "up",
@@ -11465,34 +11346,13 @@
 		"y": 31648,
 		"z": 7
 	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33817,
-		"y": 31021,
-		"z": 7
-	},
-	{
-		"description": "",
-		"icon": "checkmark",
-		"x": 33818,
-		"y": 31095,
-		"z": 7
-	},
 	{
 		"description": "",
 		"icon": "up",
 		"x": 33819,
 		"y": 31680,
 		"z": 7
 	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33835,
-		"y": 31011,
-		"z": 7
-	},
 	{
 		"description": "",
 		"icon": "up",
@@ -14461,13 +14321,6 @@
 		"y": 31733,
 		"z": 8
 	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33745,
-		"y": 31063,
-		"z": 8
-	},
 	{
 		"description": "",
 		"icon": "checkmark",
@@ -14482,20 +14335,6 @@
 		"y": 31625,
 		"z": 8
 	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33773,
-		"y": 31016,
-		"z": 8
-	},
-	{
-		"description": "",
-		"icon": "down",
-		"x": 33789,
-		"y": 31022,
-		"z": 8
-	},
 	{
 		"description": "",
 		"icon": "up",
@@ -17212,27 +17051,6 @@
 		"y": 31985,
 		"z": 9
 	},
-	{
-		"description": "",
-		"icon": "flag",
-		"x": 33752,
-		"y": 31083,
-		"z": 9
-	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33786,
-		"y": 31024,
-		"z": 9
-	},
-	{
-		"description": "",
-		"icon": "up",
-		"x": 33789,
-		"y": 31023,
-		"z": 9
-	},
 	{
 		"description": "",
 		"icon": "down",