Paper 1.13.1 Update

Updated Upstream (Bukkit/CraftBukkit/Spigot)

Bukkit Changes:
2dcc44dc SPIGOT-4307: Fix hacky API for banners on shields
e0fc6572 SPIGOT-4309: Add "forced" display of particles
efeeab2f Add index to README.md for easier navigation
f502bc6f Update to Minecraft 1.13.1

CraftBukkit Changes:
d0bb0a1d Fix some tests randomly failing
997d378d Fix client stall in specific teleportation scenarios
b3dc2366 SPIGOT-4307: Fix hacky API for banners on shields
2a271162 SPIGOT-4301: Fix more invalid enchants
5d0d83bb SPIGOT-4309: Add "forced" display of particles
a6772578 Add additional tests for CraftBlockData
ce1af0c3 Update to Minecraft 1.13.1

Spigot Changes:
2440e189 Rebuild patches
4ecffced Update to Minecraft 1.13.1

Spigot-Server-Patches/Use-asynchronous-Log4j-2-loggers.patch

@@ -5,13 +5,13 @@ Subject: [PATCH] Use asynchronous Log4j 2 loggers
 
 
 diff --git a/pom.xml b/pom.xml
-index a319cfe3b8..ddee1b0488 100644
+index 3be49ee7f4..1e7d2b5506 100644
 --- a/pom.xml
 +++ b/pom.xml
 @@ -0,0 +0,0 @@
+             <artifactId>log4j-iostreams</artifactId>
              <version>2.8.1</version>
          </dependency>
- 
 +        <!-- Paper - Async loggers -->
 +        <dependency>
 +            <groupId>com.lmax</groupId>
@@ -19,10 +19,9 @@ index a319cfe3b8..ddee1b0488 100644
 +            <version>3.4.2</version>
 +            <scope>runtime</scope>
 +        </dependency>
-+
-         <!-- testing -->
          <dependency>
-             <groupId>junit</groupId>
+             <groupId>org.ow2.asm</groupId>
+             <artifactId>asm</artifactId>
 diff --git a/src/main/resources/log4j2.component.properties b/src/main/resources/log4j2.component.properties
 new file mode 100644
 index 0000000000..ee7c90784c