Added option to allow access to entire ScopeChain from within macros. Default behavior is as before

[SharkFourSix]

• Added configuration variable globalScoping to pebble/src/main/java/com/mitchellbosecke/pebble/PebbleEngine.java:66 which effectively allows macros to be able to access variables in the entire scope chain.
• Added unit test case for the same.

To enable global scoping:

new PebbleEngine.Builder().globalScoping(true)...

Also, excuse the IntelliJ formatting. Perhaps adding a .editorconfig will be nice.

[ebussieres]

We should also disable the special "_context" variables when globalScoping is set to true.

Need to adjust also pebble-spring

[SharkFourSix]

Do you mean here:

pebble/pebble/src/main/java/io/pebbletemplates/pebble/template/PebbleTemplateImpl.java

Line 187 in f1f3336

globals.put("_context", new GlobalContext(scopeChain));

[ebussieres]

Yeah exactly, and here too

https://github.com/PebbleTemplates/pebble/blob/master/pebble-spring/pebble-spring6/src/main/java/io/pebbletemplates/spring/extension/function/bindingresult/BaseBindingResultFunction.java#L44

https://github.com/PebbleTemplates/pebble/blob/master/pebble-spring/pebble-spring5/src/main/java/io/pebbletemplates/spring/extension/function/bindingresult/BaseBindingResultFunction.java#L44