fix dangling reference in parser::Parse with unique_ptr (#8)

* fix dangling reference in parser::Parse with shared_ptr

* switch to unique_ptr

Allow escaped json to survive rendering (#5)

* add option to .dump() strings instead of .get<std::string>()

* strip leading and trailing " to preserve expected behavior

* add comments

* update single include

* don't run push CI

* remove R formatting attempting to appease windows compiler

* put push back to match upstream and reduce complexity

Merge branch 'allow-escaped-json' into envoy-gloo

reintroduce json pointer syntax

bump to v3.4.0

set version 3.3

add gcc via choco

Add homebrew

fix single include

Merge branch 'master' of https://github.com/pantor/inja