Echo and Record application are included to load

Issue Seen: On dialing #123458 and #999999 WARNING[14643][C-00000004]: pbx.c:2933 pbx_extension_helper: No application 'Echo' for extension (sip0, #123458, 1) WARNING[14745][C-00000005]: pbx.c:2933 pbx_extension_helper: No application 'Record' for extension (sip0, #999999, 2)

Fix : Included the app_record in the Makefile and removed noload instruction for app_echo.

Tests: The record is successful and on Playback can hear the recorded file. The echo can be heard and extension work.