Improve deployment script

[hvge]

The current deployment script suffers with the following problems:

1. It's damn slow, due to cocoapods
   • We have to wait about 20 minutes between releasing PowerAuthCore and PowerAuth2, because the new version is not immediately visible for
2. It's complicated when we're deploying from non-develop branch (several switches required)

Solution for poor release speed

We should deploy libraries in the following order:

• Run pod lib lints for all podpsecs (it's possible to trick linter for PowerAuth2 to include PowerAuthCore from the local file)
• Publish android library to the local maven (to test possible failures during the real deployment)
• Publish PowerAuthCore pod
• Publish PowerAuth2ForExtensions pod
• Publish PowerAuth2ForWatch pod
• Publish Android library
• Wait for a shorter time
• Publish PowerAuth2 pod

Simplify script usage

• We're always deploy all platforms, so options for deploying specific platform is deprecated.
• There should be config.sh specifying releasing branch and allowing automatic release from that branch
• There should be automatic detection whether the tag is already created (useful when deploy process fails on some unexpected error, like expired pod session)

[hvge]

Reopen. There are still missing improvements related to script usage simplification in my c098783 commit.