Log display time taken waypoints

[Ryanf55]

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Basic Info

Info	Please fill out this column
Display elapsed time in RVIZ panel and add time logging	#3347
Primary OS tested on	Ubuntu 22.04

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Description of contribution in a few bullet points

• I added two new fields in the waypoint follower action for time logging
• I fixed a typo for a random field that was defined wrong
• I added a field to the RVIZ panel to display total elapsed time -->

Description of documentation updates required from your changes

• Added description of additional time reporting fields in the nav2_waypoint_follower

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Future work that may be required in bullet points

• Display current waypoint number and current loop count in RVIZ
• Display of the result.wp_elapsed_time as a table in RVIZ

TODO list before merge

• [ ] Propose message contents have comments explaining the usage of the fields
• [ ] Add some unit tests in thenav2_waypoint_follower package
• [x] Properly handle end of waypoint mission setting time to zero
• [x] Decide if the total elapsed time field should not appear if not in waypoint follow mode
• [x] Convert to QTableWidget and make the UI look nearly the same as before
• [x] Handle hiding/showing UI items dynamically like before, but with QTableWidget
• [x] Investigate if calling new every render is a bad idea for the table elements

For Maintainers:

• [ ] Check that any new parameters added are updated in navigation.ros.org
• [ ] Check that any significant change is added to the migration guide
• [ ] Check that any new features OR changes to existing behaviors are reflected in the tuning guide
• [ ] Check that any new functions have Doxygen added
• [ ] Check that any new features have test coverage
• [ ] Check that any new plugins is added to the plugins page
• [ ] If BT Node, Additionally: add to BT's XML index of nodes for groot, BT package's readme table, and BT library lists