Add unit test to confirm.

1. Try to drop the user first so we can use the "user still connected" failure to bypass setup i.e. assume already setup correctly. This is to allow the developer to stay connected to the database (via SQLPlus or SQL Developer).

Modify OracleTestProvider
1. If Oracle setup fails, propagate failure to all tests without retrying for every test in the batch. This makes all tests fail with the same exception. In the case the user is still connected, setup is bypassed.

Fix Oracle build scripts
1. Stored procedures don't use any characters to denote a parameter, so they have to be fully qualified e.g. ProcName.paramName to differentiate them from column names (if the same name is used e.g. age).

Fix breaking tests:
1. QueryTests.cs had couple of malformed sql statements after string concatenation (missing space).
2. Override all (Oracle)StoredProcTests.cs methods that require an additional RefCursor output parameter.
3. Override all (Oracle)QueryTests.cs paging methods that require '*' to be aliased.
4. OracleQueryTests.cs had a couple of statements ending in a semi-colon, which it didn't appreciate.
5. Fix top 1 query in "QueryMultiple ForSingleResultsSetWithMultiPoco ShouldReturnValidPocoCollection". Also provide version 12c and above syntax.
6. Skip MultiResultSetWithMultiPoco tests since Oracle also does not support it (as with MSAccess and Firebird).

…ds. Oracle doesn't utilize the parameter prefix in this case.

Fixes #691
Give OracleDatabaseProvider its own implementation of BuildPageQuery and use "Select null from dual" instead of "Select null" when ORDER BY clause is absent. Alo include version 12c and above syntax in a comment for future reference.

Co-authored-by: Stelio Kontos <37424493+Ste1io@users.noreply.github.com>

…of "undoing" the pramPrefix modification in OracleDatabaseProvider.

…etaPoco into feature/oracle-support

Co-authored-by: Stelio Kontos <37424493+Ste1io@users.noreply.github.com>

…etaPoco into feature/oracle-support

…ited" identifiers.

Add support for case insensitive dynamic objects. ExpandoPoco vs ExpandoObject. To be used by OracleOrdinaryDatabaseProvider.
Add "UseOrdinaryIdentifiers" flag to IProvider to provide a global means of controlling the activation of case insensitive dynamic objects.
Add "ignoreCase" optional parameter to all Database constructors (except the ones taking in a provider) and Poco factory methods.
Add "UsingCaseInsensitiveProvider" configuration extension.
Switch between OracleDatabaseProvider and OracleOrdinaryDatabaseProvider based on "UseOrdinaryIdentifiers" flag when Resolving Provider.