feat(flexibleip): add support for flexible ip

[remyleone]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1022 (f1085c6) into master (229636c) will increase coverage by 0.00%.
The diff coverage is 67.98%.

@@           Coverage Diff            @@
##           master    #1022    +/-   ##
========================================
  Coverage   66.67%   66.67%            
========================================
  Files         119      122     +3     
  Lines       19173    19474   +301     
========================================
+ Hits        12783    12984   +201     
- Misses       5286     5354    +68     
- Partials     1104     1136    +32     

Impacted Files	Coverage Δ
scaleway/data_source_baremetal_server.go	61.81% <25.00%> (-6.94%)	⬇️
scaleway/resource_flexible_ip.go	67.17% <67.17%> (ø)
scaleway/data_source_flexible_ip.go	69.11% <69.11%> (ø)
scaleway/helpers_flexible_ip.go	79.31% <79.31%> (ø)
scaleway/provider.go	71.05% <100.00%> (+0.21%)	⬆️
scaleway/resource_baremetal_server.go	69.91% <100.00%> (ø)
scaleway/retryable_transport.go	70.00% <0.00%> (-10.00%)	⬇️

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