Insert NULL using BULK #4001 (#4755)

* fix(ODBC): Insert NULL using BULK #4001
resolve bound types and sizes at compile time

* fix: remove string suffix for static_assert

* Insert NULL using BULK #4001

* fix: typo

* fix(SQLite): missing functions; consolidate extract calls

* chore(SQLite): remove unnecessary typedef

* fix(SQLite): remove duplicate functions

* fix(SQLite): compile errors and warnings

* fix(SQLite): extract implementation signatures

* fix(SQLite): long64 platforms compile errors

* fix(SQLite): long64 platforms compile errors, part ii

* fix(ODBC): windows build

* fix(ODBC): MSSQL big string on windows

* fix(Data): psql and mysql compile errors

* fix(PostgreSQL): add missing functions

* fix(ODBC): revert column size discovery (breaks Oracle)

* fix(PostgreSQL): Nullable extraction #4001

* fix(MySQL): Nullable extraction #4001

* chore(Data): code tidy up

* fix(ODBC): add missing changes

Data/DataTest/include/Poco/Data/Test/SQLExecutor.h

@@ -242,6 +242,7 @@ public:
 		"SELECT * FROM Vectors ORDER BY int0 ASC",
 		const std::string& intFldName = "int0");
 
+	void nullBulk(const std::string& blobPlaceholder = "?"s);
 	void internalBulkExtraction();
 	void internalBulkExtractionUTF16();
 	void internalStorageType();