Add RSASS, MSR, XM2010

- Add RSASS, MSR, XM2010 normal, SD, NV and TWS versions
- SD versions have a slightly slower bullet speed as the non sd versions. Server Admins have to be careful with adding the SD versions to not hurt the server balance.
- Remove old AS50 ammo config, it is not needed any longer, also switch to the correct AS50 magazine classname.

Thx @AlwarrenSidh for the weapons.

SQF/dayz_code/Configs/CfgMagazines/Magazines/86x70.hpp

@@ -0,0 +1,28 @@
+//L115
+class 5Rnd_86x70_L115A1: CA_Magazine
+{
+	displayName = $STR_DZ_MAG_5Rnd_86x70_L115A1_NAME;
+	
+	cartridgeName = "86x70";
+	
+	class ItemActions
+	{
+		COMBINE_MAG
+	};
+};
+
+class 7Rnd_86x70_MSR: 5Rnd_86x70_L115A1
+{
+	displayName = $STR_DZ_MAG_7RND_MSR_NAME;
+	descriptionShort = $STR_DZ_MAG_7RND_MSR_DESC;	
+	count = 7;
+	picture = "\FHQ_Remington\ammo\ui\i_msr.paa";
+	model = "\FHQ_Remington\XM2010\magazine.p3d";
+};
+
+class 7Rnd_86x70_MSR_SD: 7Rnd_86x70_MSR
+{
+	initSpeed = 850;
+	displayName = $STR_DZ_MAG_7RND_MSRSD_NAME;
+	descriptionShort = $STR_DZ_MAG_7RND_MSRSD_DESC;
+};