prepare trie sync for path based operation

[ucwong]

No description provided.

[codecov]

Codecov Report

Merging #757 into master will decrease coverage by 0.02%.
The diff coverage is 68.42%.

@@            Coverage Diff             @@
##           master     #757      +/-   ##
==========================================
- Coverage   50.39%   50.37%   -0.03%     
==========================================
  Files         409      409              
  Lines       52842    52934      +92     
==========================================
+ Hits        26632    26663      +31     
- Misses      24201    24255      +54     
- Partials     2009     2016       +7     

Impacted Files	Coverage Δ
ctxc/downloader/statesync.go	64.21% <63.79%> (-3.36%)	⬇️
trie/trie.go	79.37% <66.00%> (-2.99%)	⬇️
trie/sync.go	60.30% <82.60%> (+0.19%)	⬆️
trie/secure_trie.go	78.12% <100.00%> (+7.15%)	⬆️
p2p/discover/v4_udp.go	74.87% <0.00%> (-4.32%)	⬇️
ctxc/downloader/queue.go	79.43% <0.00%> (-1.41%)	⬇️
p2p/discv5/table.go	60.27% <0.00%> (-1.37%)	⬇️
p2p/simulations/mocker.go	33.63% <0.00%> (-0.91%)	⬇️
p2p/simulations/network.go	59.92% <0.00%> (-0.72%)	⬇️
... and 8 more