Handling of webform type

[rimi-itk]

Pre-population of webform fields should only happen when webform type, i.e. “personal” or “company”, is actually set on the form.

• Cleaned up handling of webform_type setting
• Pre-populated fields only when webform type is set

[stankut]

After discussion with @skifter it is decided to leave this PR unmerged.

Setting the form type (personal/company) has always been an option, which some of the customer are not aware of (because they don't really need it with their current set up).
However the same customers actively use NemID fields (for both person and company) and expect them to work the same way as they do now.

As PR is suggsting, making the form type selection a mandatory process (without which the form prepopulate will no longer work) would mean an additional step in the workflow without any obvious gain.

AS IS form works fine with both types of NemID fields - personal/company. After logging in, the irrelevant ones will be hidden.