Fixes#364 - Get-HVEvent timeout issue
Changes to line 877-879 adds help for a new SqlTimeout parameter added to Get-HVEvent
Changes to line 931-934 add support for the new SqlTimeout parameter with a default value of 30 seconds.
Changes to line 1064 implements the timeout parameter created above when executing the query.
The change to line 1031 resolves an unrelated issue where I was seeing an extra '1' in the output from Get-HVEvent. Adding the `Out-Null` statement is similar to another example in this same function which already existed on line 1065. Adding the `Out-Null` statement did resolve the extra '1' displayed in the output.
Signed-off-by: Brian Wuchner <brian.wuchner@gmail.com>