fix: declare market bid errors as sdkerror

[troian]

fixes #702

result

{
  "height": "301",
  "txhash": "5690F8A18FA254243D94B466ABAABF7437D80FA8EE43E71008596BF2CE9E527C",
  "codespace": "market",
  "code": 20,
  "raw_log": "order closed: failed to execute message; message index: 0",
  "gas_wanted": "200000",
  "gas_used": "36491"
}

[codecov]

Codecov Report

Merging #706 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #706   +/-   ##
=======================================
  Coverage   30.87%   30.87%           
=======================================
  Files         144      144           
  Lines        6916     6916           
=======================================
  Hits         2135     2135           
  Misses       4672     4672           
  Partials      109      109           

Impacted Files	Coverage Δ
x/market/types/types.go	50.00% <ø> (ø)

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[boz]

💯 🚢