fix polygon selection and add steam deploy script

steam/build.bat

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+@echo off
+mkdir content
+xcopy /I /D /Y /S "..\x64\Release\*.dll" content
+xcopy /I /D /Y /S "..\data\*" content\data\
+for /f %%i in ('git rev-parse --abbrev-ref HEAD') do set BRANCH=%%i
+for /f %%i in ('git log "--pretty=format:%%h" -n 1') do set HASH=%%i
+for /f %%i in ('git rev-list --count HEAD') do set COUNT=%%i
+for /f %%i in ('git describe --tags "--abbrev=0"') do set TAG=%%i
+set VERSION=%TAG%.%COUNT% (%HASH%-%BRANCH%)
+echo Building version %VERSION%
+set /p ID=<steamid.txt
+steamcmd.exe +login %ID% +drm_wrap 954880 "%~dp0..\x64\Release\PanoPainter.exe" "%~dp0content\PanoPainter.exe" drmtoolp 0 +run_app_build -desc "%VERSION%" "%~dp0scripts\app_build_954880.vdf" +quit
+pause

steam/scripts/app_build_954880.vdf

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+"appbuild"
+{
+	"appid"	"954880"
+	"desc" "Your build description here" // description for this build
+	"buildoutput" "..\output\" // build output folder for .log, .csm & .csd files, relative to location of this file
+	"contentroot" "..\content\" // root content folder, relative to location of this file
+	"setlive"	"" // branch to set live after successful build, non if empty
+	"preview" "0" // to enable preview builds
+	"local"	""	// set to flie path of local content server 
+	
+	"depots"
+	{
+		"954881" "depot_build_954881.vdf"
+	}
+}

steam/scripts/depot_build_954881.vdf

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+"DepotBuildConfig"
+{
+	// Set your assigned depot ID here
+	"DepotID" "954881"
+
+	// Set a root for all content.
+	// All relative paths specified below (LocalPath in FileMapping entries, and FileExclusion paths)
+	// will be resolved relative to this root.
+	// If you don't define ContentRoot, then it will be assumed to be
+	// the location of this script file, which probably isn't what you want
+	// "ContentRoot"	"D:\MyGame\rel\master\"
+
+	// include all files recursivley
+  "FileMapping"
+  {
+  	// This can be a full path, or a path relative to ContentRoot
+    "LocalPath" "*"
+    
+    // This is a path relative to the install folder of your game
+    "DepotPath" "."
+    
+    // If LocalPath contains wildcards, setting this means that all
+    // matching files within subdirectories of LocalPath will also
+    // be included.
+    "recursive" "1"
+  }
+
+	// but exclude all symbol files  
+	// This can be a full path, or a path relative to ContentRoot
+  "FileExclusion" "*.pdb"
+}