Add outstanding templates

[BrianMichell]

I don't have a lot of understanding behind this style of data so the defaults and names likely need tweaking.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.99%. Comparing base (c3ba558) to head (d9fd597).
⚠️ Report is 224 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #767      +/-   ##
==========================================
+ Coverage   85.30%   88.99%   +3.68%     
==========================================
  Files          46      101      +55     
  Lines        2219     5744    +3525     
  Branches      306      383      +77     
==========================================
+ Hits         1893     5112    +3219     
- Misses        281      538     +257     
- Partials       45       94      +49     

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[markspec]

from mdio.builder.templates.seismic_3d_obn import Seismic3DObnReceiverGathersTemplate
from mdio.builder.templates.seismic_3d_obn_single_component import Seismic3DObnSingleComponentGathersTemplate

I vote we chunk Component as 1 and then use the same template!

I also think this default is sub-optimal:

    self._var_chunk_shape = (4, 8, 1, 2, 8, 4096)

There are often 3 guns... Rarely do we pull multiple receivers. I think we only really care about access in shot-point and depth. Also a chunks size of > 1 for receiver will prevent us from streaming nodes :-( a huge operational bottle-neck.