Added identifier/integer test cases

lexer/identifier.mj

+acshHshsdDis
+B
+b
+_
+___
+a_1010
+_10101001ava
+_112233
+fdjsdkfds_1132_adAsd_1

lexer/identifier.out.mj

+identifier acshHshsdDis
+identifier B
+identifier b
+identifier _
+identifier ___
+identifier a_1010
+identifier _10101001ava
+identifier _112233
+identifier fdjsdkfds_1132_adAsd_1
+EOF

lexer/integer.mj

+0
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
+122324303443294
+14360

lexer/integer.out.mj

+integer literal 0
+integer literal 1
+integer literal 2
+integer literal 3
+integer literal 4
+integer literal 5
+integer literal 6
+integer literal 7
+integer literal 8
+integer literal 9
+integer literal 10
+integer literal 122324303443294
+integer literal 14360
+EOF