Cleanup examples before 1.1 release

[sea-bass]

Doing some slight cleanup before a 1.1 release and my presentation at Robotics Developer Day.

The changes are:

• Removed the unnecessary example_ before the example files.
• Split up the PRM example into 2DOF vs. Panda, did the same for RRT
• Fixed slight issue in RRT to use the max connection distance when trying to connect 2 trees together

Unfortunately this is being done on an unanticipated deadline for today, so I will merge this by EOD.

[github-actions[bot]]

Coverage Report

File	Stmts	Miss	Cover	Missing
pyroboplan
__init__.py	0	0	100%
pyroboplan/core
__init__.py	0	0	100%
planning_context.py	8	8	0%	1, 4, 9, 13–15, 17–18
utils.py	134	12	91%	78–79, 81–84, 86–87, 228–229, 531, 542
pyroboplan/ik
__init__.py	0	0	100%
differential_ik.py	98	13	86%	164–165, 174–175, 203, 209, 215, 218, 256, 262–263, 268, 279
nullspacecomponents.py	35	0	100%
pyroboplan/models
__init_\.py	0	0	100%
panda.py	45	0	100%
twodof.py	8	0	100%
utils.py	5	0	100%
pyroboplan/planning
__init_\.py	0	0	100%
cartesian_planner.py	92	5	94%	115, 139, 143–144, 207
graph.py	130	4	96%	58, 103, 195, 261
graph_search.py	53	2	96%	57, 135
path_shortcutting.py	48	1	97%	121
prm.py	109	25	77%	113, 149, 211–214, 240–241, 247–248, 273–274, 278–279, 331–334, 337, 340, 348–350, 354–355
rrt.py	152	28	81%	157–158, 167–168, 192–193, 196, 204, 273, 302–303, 369, 417–419, 423–424, 428–431, 434, 437, 445–447, 450, 453
utils.py	47	0	100%
pyroboplan/trajectory
__init__.py	0	0	100%
polynomial.py	152	39	74%	148, 150–151, 153–155, 157–159, 162–185, 188, 191, 194, 203, 230, 299
trajectory_optimization.py	183	0	100%
trapezoidal_velocity.py	168	33	80%	283–284, 329, 331–335, 337–338, 341–359, 362–364, 373
pyroboplan/visualization
__init__.py	0	0	100%
meshcat_utils.py	21	13	38%	40–41, 43, 45, 57, 81–82, 109, 131–134, 136
TOTAL	1488	183	87%

Tests	Skipped	Failures	Errors	Time
95	0 :zzz:	0 :x:	0 :fire:	29.989s :stopwatch: