Added support for viewpointvalue command (#3754)

Additionally added a script command to update the player's camera.
Added a new atcommand camerainfo for this, which is limited to admins.

Credits to @4144 for finding /setcamera

doc/packet_struct_notation.txt

@@ -59,6 +59,7 @@ values.
  B = 1 byte (byte)
  W = 2 bytes (word)
  L = 4 bytes (long, dword)
+ F = 4 bytes (float)
  Q = 8 bytes (quad)
 
  nB = n bytes

doc/script_commands.txt

@@ -7659,6 +7659,28 @@ and attempt to execute a source-defined command.
 The three .@atcmd_***** variables will NOT be set when invoking script-bound atcommands
 in this way.
 
+---------------------------------------
+
+*camerainfo <range>,<rotation>,<latitude>{,<char id>};
+
+This command will update the client's camera information with the given values where
+the client can be the attached character or the player given by the char id parameter.
+Note: This requires 2016-05-25aRagexeRE or newer.
+
+The values given will be divided by 100 and transmitted as floating-point number.
+
+	range		The zoomfactor of the camera.
+				Default: 230000 (230.0) when fully zoomed in
+				Maximum: 400000 (400.0) when fully zoomed out
+
+	rotation	The rotation of the camera.
+				Default: 0 (0.0) when no rotation is applied
+				Maximum: 360000 (360.0°) when fully rotated
+
+	latitude	The angle of the camera.
+				Default: -50000 (-50.0)
+				Maximum: -75000 (-75.0)
+
 ---------------------------------------
 \\
 6,1.- Unit-related commands