Add cookies to store current instance

[viv9k]

Current functionality

Currently user are not taken can by the browser, which may lead to some error with reloading the current instance of master or participants

Required Feature

Enable the browser cookies to keep track of master and participants session so that even when the page reloads or connectivity problem occurs the session is not lost things are working properly.

[viv9k]

I have added cookie npm module which is best and latest ngx-cookie-service . This can be further used to store cookies.

Introduce a new service that handles all the cookie from one place and that will be very good option if we plan to have more cookies in future.

Component Logging and Header is already using the cookie service. Upto basic level.