AMRNAV-5586: Wait BT node doesn't work with double values

[papertowel123]

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Basic Info

Info	Please fill out this column
Ticket(s) this addresses	AMRNAV-5586
Primary OS tested on	(Ubuntu)
Robotic platform tested on

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Also see this PR, as the AMRNAV-5586 and AMRNAV-5586-2 branches are the same, but have different root branches

Description of contribution in a few bullet points

wait_duration port for Wait node is an integer, so if we pass something like 1.3 or 2.42 than it will automatically cast to nearest integer value, so i changed type of this port from int to double.

Description of documentation updates required from your changes

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Future work that may be required in bullet points

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

[tonynajjar]

@maksymdidukh can you submit a PR to Nav2 to master? If you need help doing that let me know

[papertowel123]

wait_duration port for Wait node is an integer, so if we pass something like 1.3 or 2.42 than it will automatically cast to nearest integer value, so i changed type of this port from int to double.

done ros-navigation#3871

[tonynajjar]

replaced by #50