DevM900

Results 3 issues of DevM900

Creation of backup and restore statistics can be switched off

By setting the new property `FbBackup.IncludeStatistics` to `false `fixes #1180. To ensure backward compatibility, the default value of the `FbBackup.IncludeStatistics` property is `true`.

Cannot create backup on firebird server 2.0

Calling the FbBackup.Execute() method leads to an FbException with the following message: "unrecognized service parameter block"

Correction of the return values of the DatabaseInfo methods for determining the insert, read and delete operations

These changes make it possible to analyze the performance of queries.