New filters and hooks for data and View Factory interaction

[tomasvanrijsse]

I had two use cases which weren't yet possible and found some minor bugs

1) I want to add data to all views like a ViewComposer would enable. This was only possible when the Template handler was active. I've added two filters for the same purpose in the global bladerunner function.

2) I want to call the startPush and stopPush functions from the View Factory to add some scripts without changing the blade files, because they are from another package. Therefore I added two actions to be able to hook into the initialized Blade instance.

[codecov-io]

Current coverage is 11.14% (diff: 0.00%)

Merging #38 into master will increase coverage by 0.03%

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  Methods          47         47          
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  Hits             35         35          
+ Misses          280        279     -1   
  Partials          0          0          

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