Add more generic, custom, and machine exercises

In Garmin Connect, there are VERY specific types of weight exercises - we need more generic ones.

Search for "Chest Press" and you get:

* Chest Press with Band
* Kettlebell Chest Press
* Swiss Ball Dumbbell Chest Press
* Alternating Dumbbell Chest Press
* Single-arm Cable Chest Press
* Alternating Dumbbell Chest Press

...but no plain old "Chest Press"!

Another one: "Back Extension" nets you:
* Back Extension with Opposite Arm and Leg Reach
* GHD Back Extensions
* Weighted GHD Back Extensions
* Static Back Extension
* Single-leg Back Extension
* Weighted Static Back Extension
* Weighted Single-leg Back Extension
* Swiss Ball Back Extension
* Weighted Swiss Ball Back Extension
* Weighted Back Extension with Opposite Arm and Leg Reach

...and no plain old "Back Extension"!

I would suggest this list, based on a typical "LifeFitness" circuit of 10 machines:

* Back Extension (tonnes of far too specific options, as listed above)
* Leg Extension (exists already)
* Seated Leg Curl (weighted leg curl exists)
* Seated Row ("weighted row" exists, as do more specifics)
* Chest Press ("Chest Press with Band" is the closest)
* Lateral Raise (exists)
* Biceps Curl ("Curl" is the closest)
* Triceps Extension (exists)
* Abdominal Crunch (only "Weighted Crunch" exists)

Perhaps others have suggestions for machine workouts that should exist - take a cruise around your gym and suggest ones that aren't already in Garmin Connect.