DisplayName Metadata tag is not used in the SCS editor or the My Blueprints window

This also brings up a good point about how `FName::NameToDisplayString` works. Currently it will only remove a 'b' character if a boolean is given, which leads to inconsistent results throughout the editor.

Many people want to follow a "m_Variable" naming scheme, which should also be automatically cut out for native variables in blueprints. Currently if you use a "m_" naming scheme you will not get a cleaned up version of the display name, and have blueprint nodes with incorrect "M Variable" names. 

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1. Add a new C++ class
2. Add a new property that sets the Display Name metadata property, like this:

   UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (DisplayName = "Internal Property Dis. Name")) int32 m_InternalProperty;
   
   UPROPERTY(BlueprintReadWrite, EditAnywhere, meta = (DisplayName = "Internal Mesh Dis. Name"))
   	UStaticMeshComponent* m_InternalStaticMeshProp; 

1. Create a blueprint based off of this class
2. Look in the My Blueprints panel 
3. Select "Show Inherited variables"

Result: The variable is displayed as "m_InternalProperty"

Expected: The variable is displayed as "Internal Property Dis. Name"