feat: sample - Get dataset properties

[stephaniewang526]

Fixes b/147485983

[codecov]

Codecov Report

Merging #98 into master will decrease coverage by 0.07%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master      #98      +/-   ##
============================================
- Coverage     77.32%   77.25%   -0.08%     
  Complexity     1108     1108              
============================================
  Files            73       73              
  Lines          5915     5905      -10     
  Branches        645      635      -10     
============================================
- Hits           4574     4562      -12     
+ Misses         1014     1012       -2     
- Partials        327      331       +4

Impacted Files	Coverage Δ	Complexity Δ
...ogle/cloud/bigquery/WriteChannelConfiguration.java	85.5% <0%> (-0.62%)	44% <0%> (ø)
...om/google/cloud/bigquery/LoadJobConfiguration.java	89.68% <0%> (-0.48%)	52% <0%> (ø)
...google/cloud/bigquery/StandardTableDefinition.java	86.36% <0%> (-0.41%)	14% <0%> (ø)
...a/com/google/cloud/bigquery/InsertAllResponse.java	88.88% <0%> (-0.31%)	15% <0%> (ø)
...m/google/cloud/bigquery/QueryJobConfiguration.java	76.85% <0%> (-0.29%)	56% <0%> (ø)
...src/main/java/com/google/cloud/bigquery/Field.java	82.6% <0%> (-0.19%)	25% <0%> (ø)
...n/java/com/google/cloud/bigquery/BigQueryImpl.java	66.84% <0%> (-0.18%)	58% <0%> (ø)
.../google/cloud/bigquery/spi/v2/HttpBigQueryRpc.java	5.24% <0%> (+0.03%)	2% <0%> (ø)	⬇️

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[kurtisvg]

nit: Doesn't seem like a useful link - what should the user be looking for?