Implement macros

Hi.

I think it would be useful to have one-click macros available. For instance, to click on one button to open predefined positions on predefined instruments.

For example:

Clicking on a particular macro (or hotkey) might perform the following functions:

1. Open; market; buy; 1.0 [lots]; XAU/USD
2. Open; market; buy; 1.0 [lots]; XAU/EUR

Another could be set (particularly for netted accounts - with hedged accounts it would open hedge positions)

1. Open; market; sell; 0.5 [lots]; XAU/USD
2. Open; market; sell; 0.5 [lots]; XAU/EUR

Those using hedged accounts might use a "close all" type of operator instead.

1. Closeall; buy; XAU/USD
2. Closeall; buy; XAU/EUR