Create placeholder tableau executables - INPLATFORM-441

See this ticket for more details: https://jira.doit.wisc.edu/jira/browse/INPLATFORM-441

This change creates a placeholder directory, and placeholder executables for the IICS tableau connector. The connector documentation recommends manually doing chmod 777 to the entire hyper directory. It doesn't seem like we need to take such drastic measures though to be able to use the Tableau connector, as I confirmed with having Randy test the connector after I manually allowed user execute permissions on a few of the executables.

Since those executables download after the secure agent is running, this change creates the executables in question, in advance, so that they have the correct permissions when they are downloaded later.

We will have to observe how often these files, or parent directories, change. If they change often, we will have to look into a different method of applying the correct permissions such that it isn't so dependent on specific files or directories.

@ERIC.SCHOVILLE @TTU4 @jont- could you review?