Show Floating for Firewall Rules and add Extra State Attr

[Snuffy2]

This pull request enhances the handling and display of firewall and NAT rule switches in the custom_components/opnsense/switch.py file. The main improvements include more accurate naming for NPTv6 NAT rules, improved interface labeling for firewall rules, and expanded extra state attributes for both firewall and NAT rule switches to provide richer information.

Improvements to rule naming and labeling:

• Updated the naming convention for NPT NAT rules to clarify that they are NPTv6 rules, including docstrings and entity names. [1] [2] [3]
• Improved interface labeling for firewall rules by marking rules with more than one interface as "Floating" for clarity.

Enhancements to extra state attributes:

• Expanded the extra state attributes for firewall rule switches to include description, categories, state, action, direction, interfaces, version, protocol, source/destination networks and ports, and gateway.
• Added dynamic mapping of extra state attributes for NAT rule switches based on the NAT rule type, providing detailed information such as protocol, networks, ports, translation targets, and IPv6 prefixes.

Partially addresses #488

[github-actions]

Coverage report

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File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
custom_components/opnsense
switch.py					429, 432, 910-911, 1067-1068
Project Total

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