Wiwat Tharateeraparb

Results 2 issues of Wiwat Tharateeraparb

The `modifyOrder()` seems to have a bug when modifying `price`. Replicate with below commands: ``` from PyLOB import OrderBook lob = OrderBook() trades, orderInBook = lob.processOrder({'type':'limit','side':'bid','qty':100,'price':150,'tid':1},False,False) print lob lob.modifyOrder(1,{'side':'bid','qty':120,'price':150,'tid':1}) print...

Using `Dialog.Button` component Compared with native `Alert.alert` button

enhancement
good first issue