Overhaul continuous integration and docker images

The old CI script was building bayeswave against a LIGO software environment that is no longer updated. This merge:

• Creates a dependency image every night using the latest released versions of LIGO software (e.g., LALSuite). Ensures correct operation in LDG environments.
• Introduces nightly build and operation tests
• Tests the build and operation of every commit to bayeswave in that environment
• Builds and deploys a nightly docker image of BayesWave
• Tests the build of the BayesWave RPM
• Installs BayesWave into its container via the RPM built in CI