Adding Raku (#281)

* Adding Raku

probably doesn't work lol tried copying the other ones someone could probably implement it using the build instructions from this https://rakudo.org/downloads/rakudo/source

* Update test.raku

* edited raku implementation

put it in version folder 6.d and removed the v from version in the json file

* edited raku version

changed the same stuff as last time but with different stuff

* raku edit build.sh

remove some unnecessary lines from the file

* raku edit version

editing version name again lol

packages/raku/6.100.0/build.sh

@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+curl -L "https://rakudo.org/dl/rakudo/rakudo-moar-2021.05-01-linux-x86_64-gcc.tar.gz" -o raku.tar.xz
+tar xf raku.tar.xz --strip-components=1
+rm raku.tar.xz

packages/raku/6.100.0/environment

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+# Path to raku binary
+export PATH=$PWD/bin:$PATH

packages/raku/6.100.0/metadata.json

@@ -0,0 +1,5 @@
+{
+    "language": "raku",
+    "version": "6.100.0",
+    "aliases": ["raku", "rakudo", "perl6", "p6", "pl6"]
+}

packages/raku/6.100.0/run

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+raku "$@"

packages/raku/6.100.0/test.raku

@@ -0,0 +1 @@
+say "OK"