feat: valkeyrdma

[rueian]

Src: https://github.com/valkey-io/valkey/blob/unstable/deps/libvalkey/src/rdma.c

TODOs: Complete the net.Conn implementation.

• Connect
• Close
• Read
• Write
• LocalAddr
• RemoteAddr
• Tests

Related to #93

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 57 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.60%. Comparing base (ff09074) to head (e934c67).

Files with missing lines	Patch %	Lines
valkeyrdma/conn_linux.go	0.00%	57 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #103      +/-   ##
==========================================
- Coverage   94.72%   94.60%   -0.12%     
==========================================
  Files          99      100       +1     
  Lines       47029    47086      +57     
==========================================
  Hits        44548    44548              
- Misses       2097     2153      +56     
- Partials      384      385       +1     

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