H2 Blob Type support is incorrect

Hi,
A fix has been done for H2 for CLOB types (cf. https://liquibase.jira.com/browse/CORE-1288#icft=CORE-1288).
However, the fix has not been done for BLOB types.

Indeed, Liquibase converts "blob" into LONGVARBINARY type while H2 supports natively a BLOB type.

The consequence is : where our ORM tool expects a native 'BLOB', it fails because it finds a longvarbinary.

Liquibase should use the native type 'BLOB' (same as Oracle database in class "liquibase.datatype.core.BlobType")