Implemented the ability to export IPA files from already compiled archives and more.

• Implemented the ability to export IPA files from already compiled archives.
• JENKINS-50266 : Fix custom xcodebuild arguments not passed through to export archive step.
• JENKINS-51418 : Fix to always be able to use developer team ID as a parameter regardless of automatic code signature.
• Fix the Plugin is abnormally terminate if the out of order of lines from Xcodebuild output is changed.
• Added a function to retrieve necessary information for code signature from compiled archive.

Add xcode9 new signing support and pipeline.

Add xcode9 new signing support.
1. Wrap development team setup in a conditional manual signing block
2. Add definitions of needed provisioning profiles in this same block
3. Default to automatic signing with -allowProvisioningUpdates

Adding Pipeline support for importDeveloperProfile and adding symbols for easier pipeline integration.
1. Made pipeline usable in importDeveloperProfile and xcodeBuild respectively