[PORT] [Expression] Expanding max/min built-in functions can take list params

[tomlm]

Port this change from botbuilder-dotnet/master branch:
microsoft/botbuilder-dotnet#3345

closes: #3343

Now max/ min functions can also take a list of numeric values as a parameter.
For example:
max(createArray(1, 2, 3))
min(createArray(1, 2, 3))

Also they can take a mixing of numeric lists and numeric values.
max(createArray(1, 2, 3), 5)
min(createArray(1, 2, 3), 5)

Changed projects

• Microsoft.Bot.Expressions
• Microsoft.Bot.Expressions.Tests

[Stevenic]

Needs port