Complete check for mass position channels

closes #298 (closed)

• ABC is a configuration error. Will be removed.
• If there are some channels detected as not found, the warning will be "Did not find mass-position channel(s) ..."
• Separate in to group 123, UVW; 456, ENZ to give warning according to groups. Notice a swapping between UVW and ENZ.
  • If none of 123/UVW detected "123/UVW" will be detected as not found.
  • If none of 456/ENZ detected "456/ZNE" will be detected as not found.
  • If some of the channels in a group are found, the rest will be detected as not found.