| name | Name of the property. |
| value | Variable, to which to store the value of the property, if set. |
| target | An optional build target group, to which the property applies. |
bool True if property was set and it's value assigned to given variable.
Searches for property and assigns it's value to given variable.
Property is not required to exist. If it doesn't exist, value variable will not be changed and this method will return false.