Should entry-points respect `HideEnumValueAttribute` information?

[TomFinley]

The HideEnumValueAttribute is currently only respected by the command line help tool. Here is an example of it:

machinelearning/src/Microsoft.ML.Transforms/NAHandleTransform.cs

Lines 45 to 52 in c023727

	[HideEnumValue]
	Def = DefaultValue,
	[HideEnumValue]
	Default = DefaultValue,
	[HideEnumValue]
	Min = Minimum,
	[HideEnumValue]
	Max = Maximum,

Yet in the entry-point manifest I see is polluted with these shorter forms. I feel like these probably ought to be suppressed here during manifest generation as well.

machinelearning/test/BaselineOutput/Common/EntryPoints/core_manifest.json

Lines 15620 to 15632 in 20099c3

	"Name": "ReplaceWith",
	"Type": {
	"Kind": "Enum",
	"Values": [
	"Default",
	"Def",
	"DefaultValue",
	"Mean",
	"Minimum",
	"Min",
	"Maximum",
	"Max"
	]

Also the entry-point based API is affected by the same issue, of course.

machinelearning/src/Microsoft.ML/CSharpApi.cs

Lines 11162 to 11169 in 20099c3

	Default = 0,
	Def = 0,
	DefaultValue = 0,
	Mean = 1,
	Minimum = 2,
	Min = 2,
	Maximum = 3,
	Max = 3