Bug report

Required Info:

• Operating System: Linux
• Installation type: Source, master
• Version or commit hash: 3dc5872
• DDS implementation: Fast-RTPS
• Client library (if applicable): rclpy

Steps to reproduce issue

Running deserialize_message(serialized_message: bytes, message_type) on a message containing a field set to NaN triggers the bounds check added in #128.

assert value >= -3.402823e+38 and value <= 3.402823e+38,
AssertionError: The 'current' field must be a float in [-3.402823e+38, 3.402823e+38]

Expected behavior

The NaN value should be converted to a NaN in python.

The BatteryState message, for example, uses NaNs to flag values that are not measured.

Actual behavior

The conversion triggers an assertion, and fails to deserialize.

Additional information