refactor(udp): switch to channel mode

[flc1125]

No description provided.

[what-the-diff]

PR Summary

• Refactor in UDP server configuration options

  • The functions WithHandler and WithRecoveryHandler have been simplified, now only requiring a singular 'Message' object which encapsulates key information from a UDP connection. This makes it easier and simpler to set up a UDP server.

• UDP Message Struct added

  • A new Message struct has been included which consolidates the Conn, Addr and Body of a UDP message into one package, aiding in organization of data.

• Inclusion of read channel

  • Read channel, readChan is added to accept incoming UDP messages. There is an additional capability to define the size of this channel via readChanSize.

• Asynchronous behaviour enabled

  • To improve efficiency, a start goroutine has been implemented to constantly read from the UDP connection and process the incoming messages. Correspondingly a stop function added to halt the goroutine when required.

• Reworked testing methodology

  • Incorporated the aforementioned changes into the test suite for consistency by using the new logic and parameters. Simpler, more unified tests should lead to better maintenance and understanding going forward.

[codecov]

Codecov Report

Attention: 9 lines in your changes are missing coverage. Please review.

Comparison is base (0d805ae) 70.88% compared to head (f6c5aa0) 71.44%.

Files	Patch %	Lines
udp/server.go	78.04%	8 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #46      +/-   ##
==========================================
+ Coverage   70.88%   71.44%   +0.56%     
==========================================
  Files          22       22              
  Lines         680      711      +31     
==========================================
+ Hits          482      508      +26     
- Misses        182      187       +5     
  Partials       16       16              

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