Add interpreters for APL and J (#3029)

* Add APL interpreters

* Add J interpreter

* Add test fixtures for APL/J interpreters

lib/linguist/languages.yml

@@ -75,6 +75,10 @@ APL:
   extensions:
   - .apl
   - .dyalog
+  interpreters:
+  - apl
+  - aplx
+  - dyalog
   tm_scope: source.apl
   ace_mode: text
 
@@ -1666,6 +1670,8 @@ J:
   color: "#9EEDFF"
   extensions:
   - .ijs
+  interpreters:
+  - jconsole
   tm_scope: source.j
   ace_mode: text
 

samples/APL/hashbang

@@ -0,0 +1,7 @@
+#!/usr/local/bin/apl --script
+NEWLINE ← ⎕UCS 10
+HEADERS ← 'Content-Type: text/plain', NEWLINE
+HEADERS
+⍝ ⎕←HEADERS
+⍝ ⍕⎕TS
+)OFF

samples/J/hashbang

@@ -0,0 +1,3 @@
+#!/bin/jconsole
+echo 'Hello, GitHub!'
+exit ''