* Added Kafka Output Functions
* Added samples for Javascript runtime
* Kafka samples fortypescript, powershell , java and python
* Kafka samples for dotnet
* Samples for dotnet-isolated
* Updated headers samples for typescript
* Modified Headers samples
* Modified all trigger functions with base64 decoded value
* Added function.json for eventhubs
* Added eventhub samples and updated confluent samples for java
* Added eventhub samples for dotnet and dotnet-isolated
* Updated local.settings.json and renamed to function.confluent.json
* Removed dotnet-isolated's headers functions
* Removed string and added KafkaEntity object in Kafka output binding for java runtime
* Removed post attribute for http trigger from function.json
* Added print statements in powershell kafka trigger functions
* Changed datatype from binary to string for Javascript samples
* Corrected header samples for java
* Fixed samples with wrong configuration
* Reverting changes in pom.xml and updating libraries to updated version
* Added enitity folder
* Correcting extension verion
* Added Headers section to readme
* Added note related to username and password for eventhub
* Updating function names in Readmes
* Updating readme
Co-authored-by: Shivam Rohilla <80326489+shrohilla@users.noreply.github.com>
krishna-kariya