Feature list depth option

[mcakircali]

most of this PR was merged as part of schema rule
only those tests (from mars suite) are to be merged
tests are taking longer than avg.

    Start 285: test_fdb_tools_list_all
1/8 Test #285: test_fdb_tools_list_all ............   Passed   11.11 sec
    Start 286: test_fdb_tools_list_all_full
2/8 Test #286: test_fdb_tools_list_all_full .......   Passed    8.65 sec
    Start 287: test_fdb_tools_list_location
3/8 Test #287: test_fdb_tools_list_location .......   Passed    1.39 sec
    Start 288: test_fdb_tools_list_masking
4/8 Test #288: test_fdb_tools_list_masking ........   Passed    5.85 sec
    Start 289: test_fdb_tools_list_minimum_keys
5/8 Test #289: test_fdb_tools_list_minimum_keys ...   Passed    1.56 sec
    Start 290: test_fdb_tools_list_porcelain
6/8 Test #290: test_fdb_tools_list_porcelain ......   Passed    3.34 sec
    Start 291: test_fdb_tools_list_ranges
7/8 Test #291: test_fdb_tools_list_ranges .........   Passed    7.17 sec
    Start 292: test_fdb_tools_list_depth
8/8 Test #292: test_fdb_tools_list_depth ..........   Passed    0.94 sec

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.50%. Comparing base (a4a4fda) to head (c5bb121).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop      #34      +/-   ##
===========================================
+ Coverage    61.48%   61.50%   +0.01%     
===========================================
  Files          275      275              
  Lines        15253    15253              
  Branches      1556     1556              
===========================================
+ Hits          9379     9381       +2     
+ Misses        5874     5872       -2     

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