Node proposal fixes

[tadaskay]

Fixes: #3426 (node and discovery is using ip_type, but location oracle is still returning node_type)
Fixes: proposal price not matching service start opts (way off)

[codecov-commenter]

Codecov Report

Merging #3429 (0e9249d) into master (32b8548) will increase coverage by 0.03%.
The diff coverage is 53.84%.

@@            Coverage Diff             @@
##           master    #3429      +/-   ##
==========================================
+ Coverage   43.24%   43.28%   +0.03%     
==========================================
  Files         312      312              
  Lines       13790    13789       -1     
==========================================
+ Hits         5964     5969       +5     
+ Misses       7103     7098       -5     
+ Partials      723      722       -1     

Impacted Files	Coverage Δ
core/location/oracle_resolver.go	0.00% <0.00%> (ø)
session/pingpong/factory.go	0.00% <ø> (ø)
market/price.go	46.15% <83.33%> (-16.35%)	⬇️
core/service/manager.go	68.96% <100.00%> (+2.71%)	⬆️
market/service_proposal.go	66.66% <100.00%> (ø)
tequilapi/endpoints/service.go	90.83% <100.00%> (ø)
nat/traversal/pinger.go	72.13% <0.00%> (+1.09%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 32b8548...0e9249d. Read the comment docs.