[OLINGO-312] Support for passing Mapping Model as a Input Stream.
Implement the method getJPAEdmMappingModelStream method of
JPAEdmExtension interface to return a Stream of Mapping Model. The
mapping model stream should be a XML document adhering to
JPAEDMMappingModel.xsd


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-312] Fix NULL Pointer Exception
[OLINGO-325] Remove unused code - EdmTypeConvertor.java


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-306] Replace Static fields with Instance fields to prevent
concurrent modifications to the ArrayList.
[OLINGO-312] Fix Build Issue - This file got missed out in the commit :(


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-306] Fix - Clear Join Column list.
[OLINGO-241] convenience method added
[OLINGO-310] Omit D wrapper in Json payload if needed
[OLINGO-310] ContentOnly flag
[OLINGO-310] Confirm consumer can consume content only payload
[OLINGO-330] fixed
[OLINGO-295] Referential Constraint fix
[OLINGO-165] Remove deprecated variables and methods
[OLINGO - 127] 
- Support for handling JPA annotation JoinColumn without "name" and
"referencedColumnName" attributes.

- Support for handling JPA annotation JoinColumns.

- Fix for naming convention for Foreign key properties.

- Adapt Reference scenario to show case the above new features

Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-329] Support for java.sql.Timestamp


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-293] Fix Null Pointer Exception in JPA Error Callback


Signed-off-by: Chandan V A <chandan.v.a@sap.com>
[OLINGO-333] Fix FunctionImport ReturnType bug
[OLINGO-334] fix function import parameter bug
[OLINGO-334] Verify no parameters and no ReturnType dont cause an
exception
[OLINGO-335] Run Code cleanup