TYPO3 Core

Provide a way to make TS constants available in the frontend automatically at the following places:

- cObj FLUIDTEMPLATE => useful for page templates
- ActionController of extbase => useful to get constants in every extbase extension

Only site constants within the constants area should be exposed, so something like

    site {
        examplePage = 123
        breakpoints {
            xs = 200
            md = 400
        }
    }