Normalizing the profiles

[afischerdev]

We have to change the profiles when the issue #486 goes online and the PR #458 is merged. So it is a good time to think about normalization of the profiles. What I see at the moment:

• our standard profiles have different handling for access rules
• make variable tags (editable in BRouter-Web) available in all profiles
• check if a rule is better to be fully banned or if a heavy penalty should be added
• check avoid_path for other bike/foot profiles
• check fastbike for excluding unused constants #573

What do you think? Other ideas?