Call Features() getter to read DB provider features

[matthew1001]

Looking into #1199 (originally due to #1196) it appears that we are referencing the SQLCommon.features struct field expecting it to have the features of the DB provider, but with the refactoring that took place under #1110 the SQLCommon.features field is actually populated by the DB provider. That's because there's now also a Database.features struct field in firefly-common which is the one that's actually been populated.

In this PR I've removed the SQLCommon.features field and where we try to read from it today, used instead the new Features() getter that I've added under firefly-common PR hyperledger/firefly-common#49

This PR will remain in draft until hyperledger/firefly-common#49 is approved and we have a new release of firefly-common to pull in. (firefly-common v1.2.3 now released and pulled in under the latest commit)

[codecov-commenter]

Codecov Report

Merging #1197 (f534c26) into main (7f008a9) will not change coverage.
The diff coverage is 100.00%.

❗ Current head f534c26 differs from pull request most recent head 2b5bb32. Consider uploading reports for the commit 2b5bb32 to get more accurate results

@@            Coverage Diff            @@
##              main     #1197   +/-   ##
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  Coverage   100.00%   100.00%           
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  Files          305       305           
  Lines        19966     20057   +91     
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+ Hits         19966     20057   +91     

Impacted Files	Coverage Δ
internal/database/sqlcommon/sqlcommon.go	100.00% <ø> (ø)
internal/database/sqlcommon/blob_sql.go	100.00% <100.00%> (ø)
internal/database/sqlcommon/data_sql.go	100.00% <100.00%> (ø)
internal/database/sqlcommon/event_sql.go	100.00% <100.00%> (ø)
internal/database/sqlcommon/message_sql.go	100.00% <100.00%> (ø)
internal/database/sqlcommon/pin_sql.go	100.00% <100.00%> (ø)
cmd/firefly.go	100.00% <0.00%> (ø)
internal/reference/reference.go	100.00% <0.00%> (ø)
internal/namespace/configreload.go	100.00% <0.00%> (ø)
internal/blockchain/common/common.go	100.00% <0.00%> (ø)
... and 2 more

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