[TASK] Refactor menu parsing

Menu items array is now indexed by page UID to help accessing single items in other view helpers
[FEATURE] Add browse menu view helper

This view helper adds a browse menu similar to special.browse in TS
[DOC] Adjust argument descriptions for defaults in Browse Menu ViewHelper
[TASK] Refactor link text fetching to shared method, Abstract Menu ViewHelper
[FEATURE] Allow getting title of pages from page record, Browse Menu ViewHelper
Merge pull request #3 from NamelessCoder/vhbrowse

[TASK] Few improvements to Browse Menu ViewHelper
Merge pull request #85 from dreipunktnull/vhbrowse

[FEATURE] Add browse menu viewhelper