Update code samples to match AmbrosusSDK 2.0 spec, version bump

Fix podspec validation typo, minor version bump

AmbrosusSDK Release version 1.3.0

**Changes**
    * Improvements to data model for assets and events
    * Enhancements to most core classes including Accounts, Network, etc
    * Updated documentation

AmbrosusBlockchainSDK Release version 1.0.0

**Features**
    * Generate Ambrosus Blockchain accounts using 12 word seed phrase, fetch address from private key, etc
    * Send signed Amber token transactions using client-side signing from seed phrase.
    * Fetch the Amber token balance for a user from their address

add demo accounts.

fixe issue with undefined sequenceNumber.

AmbrosusSDK Release version 2.0.0

* Improvements to data model for assets and events
* Enhancements to most core classes including Accounts, Network, etc
* Updated documentation

Fixed in this commit: Remove unneeded files/dependency, fix Unit Tests host, fix account fetch crash,

AmbrosusSDK Release version 1.3.0

**Changes**
    * Improvements to data model for assets and events
    * Enhancements to most core classes including Accounts, Network, etc
    * Updated documentation

AmbrosusBlockchainSDK Release version 1.0.0

**Features**
    * Generate Ambrosus Blockchain accounts using 12 word seed phrase, fetch address from private key, etc
    * Send signed Amber token transactions using client-side signing from seed phrase.
    * Fetch the Amber token balance for a user from their address

Update folder structure to make the SDK more readable

Release version 1.2.0

Release 1.0.0