Add tasks for all the new languages

Task/Hello-world-Text/LC3-Assembly/hello-world-text-1.lc3

@@ -0,0 +1,6 @@
+.orig x3000
+LEA R0, hello    ; R0 = &hello
+TRAP x22         ; PUTS (print char array at addr in R0)
+HALT
+hello .stringz "Hello World!"
+.end

Task/Hello-world-Text/LC3-Assembly/hello-world-text-2.lc3

@@ -0,0 +1,10 @@
+.orig x3000
+LEA R1, hello        ; R1 = &hello
+TOP LDR R0, R1, #0   ; R0 = R1[0]
+BRz END              ; if R0 is string terminator (x0000) go to END
+TRAP x21             ; else OUT (write char in R0)
+ADD R1, R1, #1       ;      increment R1
+BR TOP               ;      go to TOP
+END HALT
+hello .stringz "Hello World!"
+.end