Change: Preprocess to token scheduled, less dependency on type prediction, which put to LINK or C# compiling pase
Design: the EXPRESS lang feature "FIXED" keyword not supported, builtin type binary not supported, not used in STEP AP203 and much too complex to make a full marshal implementation in C#.
Add: Node generating method to generate literal node
Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
Nitload
