Rewrite the .dockerignore file into a denylist

This should help with not forgetting to add any new directories (such as
TShockInstaller and TShockPluginManager, which have been missing until
now).

.dockerignore

@@ -1,15 +1,20 @@
-# ignore every file
+# Ignore all Git metadata and build output (in all directories).
-*
+**/.git*
+**/bin/
+**/obj/
 
-# except for the ones required for building
+# Ignore other specific files that aren't needed for the build itself.
-!i18n/
+/.all-contributorsrc
-!prebuilts/
+/.dockerignore
-!TerrariaServerAPI/
+/.editorconfig
-!TShockAPI/
+/.vscode
-!TShockLauncher/
+/appveyor.yml
-!TShockLauncher.Tests/
+/COPYING
-!TShock.sln
+/crowdin.yml
-
+/Dockerfile
-# but exclude build artifacts
+/docs
-*/bin/
+/README.md
-*/obj/
+/README_cn.md
+/renovate.json
+/scripts
+/SECURITY.md

docs/changelog.md

@@ -89,6 +89,7 @@ Use past tense when adding new entries; sign your name off when you add or chang
 * Added a method `TSPlayer.GiveItem`, which has `TShockAPI.NetItem` structure in its arguments. (@AgaSpace)
 * Added a property `TSPlayer.Hostile`, which gets pvp player mode. (@AgaSpace)
 * Fixed typo in `/gbuff`. (@sgkoishi, #2955)
+* Rewrote the `.dockerignore` file into a denylist. (@timschumi)
 
 ## TShock 5.2
 * An additional option `pvpwithnoteam` is added at `PvPMode` to enable PVP with no team. (@CelestialAnarchy, #2617, @ATFGK)