Updated Upstream (Paper)

Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@3fc9358 Show stacktrace when modifyItemStack fails
PaperMC/Paper@f175193 Expose server build information (#10729)

patches/api/0003-Build-System-Changes.patch

@@ -0,0 +1,19 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Ben Kerllenevich <ben@omega24.dev>
+Date: Sat, 12 Jun 2021 12:35:38 -0400
+Subject: [PATCH] Build System Changes
+
+
+diff --git a/build.gradle.kts b/build.gradle.kts
+index fd39ed209b20c927054b8482c400beeeeab460a3..6aef83558a5ef7e84873b127c3bb43a6468c9a24 100644
+--- a/build.gradle.kts
++++ b/build.gradle.kts
+@@ -142,6 +142,8 @@ tasks.jar {
+ }
+ 
+ tasks.withType<Javadoc> {
++    (options as StandardJavadocDocletOptions).addStringOption("-add-modules", "jdk.incubator.vector") // Purpur - our javadocs need this for pufferfish's SIMD patch
++    (options as StandardJavadocDocletOptions).addStringOption("Xdoclint:none", "-quiet") // Purpur - silence Paper's bajillion javadoc warnings
+     val options = options as StandardJavadocDocletOptions
+     options.overview = "src/main/javadoc/overview.html"
+     options.use()