HPCC-10949 DOCS: document Spray Variable and Spary BLOB

FIX HPCC-10949 DOCS: document Spray Variable and Spary BLOB
Added language to DH-Man module to cover both Variable and Blob.
Blob issue # HPCC-10948

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
HPCC-10948 DOCS: Add Spray Variable and Spray Blob

FIX HPCC-10948 DOCS: Add Spray Blob to Docs
Also addresses HPCC-10949 DOCS: Add Spray Variable

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
HPCC-10948 DOCS: Add Spray Variable and Spray Blob

FIX HPCC-10948 DOCS: Add Spray Blob to Docs
Also addresses HPCC-10949 DOCS: Add Spray Variable

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>
HPCC-10948 DOCS: Add Spray Variable and Spray Blob

FIX HPCC-10948 DOCS: Add Spray Blob to Docs
Also addresses HPCC-10949 DOCS: Add Spray Variable

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>