[core] #isEqual cannot compare double/float types

[sdcb]

If you write: #isEqual<A, 3, sql {...}>, you will not get correct SQL expected, this is because following code:

sdmap/sdmap/src/sdmap/Macros/Implements/RuntimeMacros.cs

Line 201 in 4b69a10

return db.Equals(v1);

Using double.Equals(int) to compare double and int, this will always returns false (as in reference source):
https://referencesource.microsoft.com/#mscorlib/system/double.cs,148

We can do workaround by using decimal typed property instead of int property:
decimal A int A