Anti CSRF Protection

[jeevatkm]

Implementation of #115

[codecov]

Codecov Report

Merging #121 into v0-unstable will increase coverage by 0.24%.
The diff coverage is 93.81%.

@@               Coverage Diff               @@
##           v0-unstable     #121      +/-   ##
===============================================
+ Coverage        87.71%   87.95%   +0.24%     
===============================================
  Files               20       20              
  Lines             2076     2151      +75     
===============================================
+ Hits              1821     1892      +71     
- Misses             179      185       +6     
+ Partials            76       74       -2

Impacted Files	Coverage Δ
engine.go	85.34% <ø> (+1.75%)	⬆️
error.go	90% <ø> (ø)	⬆️
context.go	100% <ø> (ø)	⬆️
view.go	97.01% <100%> (+0.02%)	⬆️
middleware.go	66.66% <100%> (+0.92%)	⬆️
router.go	84.21% <60%> (-1.82%)	⬇️
param.go	86.04% <85.71%> (-3.02%)	⬇️
security.go	92.23% <96.29%> (+2.68%)	⬆️

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