Support FLOAT data type for bulk copy operation using RowSet

[peterbae]

Fixes issue #961

[codecov-io]

Codecov Report

Merging #986 into dev will decrease coverage by 0.47%.
The diff coverage is 33.33%.

@@             Coverage Diff              @@
##                dev     #986      +/-   ##
============================================
- Coverage     50.61%   50.14%   -0.48%     
+ Complexity     2921     2880      -41     
============================================
  Files           120      120              
  Lines         27996    27989       -7     
  Branches       4681     4677       -4     
============================================
- Hits          14170    14034     -136     
- Misses        11530    11692     +162     
+ Partials       2296     2263      -33

Flag	Coverage Δ	Complexity Δ
#JDBC42	49.68% <33.33%> (-0.46%)	2839 <0> (-39)
#JDBC43	50.07% <33.33%> (-0.41%)	2877 <0> (-39)

Impacted Files	Coverage Δ	Complexity Δ
...om/microsoft/sqlserver/jdbc/SQLServerBulkCopy.java	50.52% <33.33%> (-1.18%)	246 <0> (-8)
...sqlserver/jdbc/SQLServerBulkBatchInsertRecord.java	0% <0%> (-30.72%)	0% <0%> (-18%)
...oft/sqlserver/jdbc/SQLServerPreparedStatement.java	47.16% <0%> (-6.25%)	189% <0%> (-27%)
.../microsoft/sqlserver/jdbc/SQLServerBulkCommon.java	41.66% <0%> (-5.56%)	3% <0%> (-2%)
...a/com/microsoft/sqlserver/jdbc/PLPInputStream.java	58.57% <0%> (-1.19%)	33% <0%> (-1%)
...in/java/com/microsoft/sqlserver/jdbc/IOBuffer.java	55.45% <0%> (-0.3%)	0% <0%> (ø)
...rc/main/java/com/microsoft/sqlserver/jdbc/dtv.java	68.3% <0%> (-0.3%)	0% <0%> (ø)
...ncurrentlinkedhashmap/ConcurrentLinkedHashMap.java	38.36% <0%> (-0.22%)	42% <0%> (-1%)
...n/java/com/microsoft/sqlserver/jdbc/Parameter.java	67.13% <0%> (-0.21%)	63% <0%> (-1%)
... and 10 more

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