Convert ad_completed and ad_skipped to Strings #28
Description
Should these lines end with an additional .toStr()
https://github.com/mParticle/mparticle-roku-sdk/blob/master/mParticleCore.brs#L1793-L1794
Because the values are stored as booleans, and these will not get sent due to not being strings:
https://github.com/mParticle/mparticle-roku-sdk/blob/master/mParticleCore.brs#L1850