Kinesis: Separate out dart package and various fixes

[jvh-aws]

Addition to Kinesis Client Feature

• Add dart package
• Add record storage error and wrap all errors in kinesis exception (add consistent from method for kinesis exception type)
• Do not expose logger as part of public constructor
• Avoid reexporting foundation types
• Fix error message when sqlite3.wasm file not found in dev mode
• Enable full flush but attempt batches only once per flush
• Fix partition key length verification
• Minor fixes