Migrate ofbiz away from ntext datatype for Microsoft SQL Server entity types

Issue Summary

Ofbiz uses ntext data type for very-long, extremely-long, and text data types:

jira/jira-components/jira-core/src/main/ofbiz/entitydefs/fieldtype-mssql.xml

    <field-type-def type="very-long" sql-type="NTEXT" java-type="String"></field-type-def>
    <field-type-def type="extremely-long" sql-type="NTEXT" java-type="String"></field-type-def>
    <field-type-def type="text" sql-type="NTEXT" java-type="String"></field-type-def> 

According to Microsoft, ntext, text and image data types will be removed in a future version of SQL Server

Recommendation

Migrate these data types to either nvarchar(max), or varchar(max)