Omspy

* 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`

Features
* order `execute, modify, cancel` functions to take additional attribs_to_copy argument to copy attributes from brokers
* Broker instance could have now have properties to be added automatically during `execute, modify, cancel` function

Fixes
* Finvasia broker to return order_id as a string instead of dictionary
* Finvasia broker `order_modify` to correctly add arguments when called