Extensions support

[ealeksandrov]

Description

I've noticed that QuickLook doesn't work for any app extensions, although they should be supported. When debugging, I've found that they are missing provision data, so QuickLook fails without analysing Info.plist.

Changes

• Add provisionData and appPlist initializers for app extensions.
• When appPlist != nil && provisionData == nil - hide provisioning section, but continue previewing Info.plist data.
• Add specific header title for app extensions.
• Add Extension type info field for app extensions.

Test

1. Install debug version of ProvisionQL to ~/Library/QuickLook/.
2. Unzip test .ipa, navigate to the extensions folder: *.ipa/Payload/*.app/PlugIns/*.appex.
3. Hit space to trigger QuickLook on any app extension.

Screenshots

before	after