Omspy

Improvements to the VirtualBroker module
Features
Following features added to `VirtualBroker`
* `VirtualBroker` methods to match `FakeBroker` methods
* Users added, orders can be placed and managed based on user
* Order status could be fetched based on Status
* delay attribute added to broker
* Ticker model improved with ohlc and orderbook methods

Improvements
* `iterate_method` made generic
* `Ticker` model now moved to models

* New `FakeBroker` class added to simulation
* API added for generating fake data in `omspy.simulation.server`

Features
* New `simulation` module added
* `VirtualBroker` added for faking orders
* You can now add keys to `CompoundOrder` when adding an order
* `CompoundOrder` orders now have an automatic index
* `get` function added to `CompoundOrder` to search by index or custom key
* `update_quantity` function added to utils

Features
* `force_order_type` directive added to `PegSequential` orders; now `PegSequential` orders could either force order type to LIMIT or proceed with the actual order type

Fixes
* kotak broker `close_all_positions` correctly implemented
* kotak broker price and trigger price to be set to zero when MARKET order is placed

Fixes
* zerodha broker TOTP auto login error fixed

Fixes
* zerodha broker `side` forced to be in upper case to enable `close_all_positions`