[wasm][debugger] Refactor of getProperties mechanism

[ilonatommy]

Refactoring of getProperties process on the debugger. Original refactoring branch: https://github.com/radical/runtime/tree/322a4fff21787cfc1a62a384414a63eea31eb093.
Fixes accessibility level sorting #63082 and closes the PR with old approach: #63339.
Changes:

• Moving all the functions connected with fetching object's (object / valuetype) members into a separate, static class to narrow down SdbHelper responsibilities.
• Creating GetMembersResult that is holding object's members sorted by accessibility.
• Moving ValueTypeClass into a separate file o shorten SdbHelper.cs.
• For sorting: more complex tests with inheritance instead of only string-based.
• For Browsable: adding tests for non-static structures, adding null member and Enum and Class members.

What is not covered:

• support for ValueTypes in DebuggerProxyAttribute: [wasm][debugger] Add support for ValueTypes in DebuggerProxyAttribute #68390
• support for structures with static members: [wasm][debugger] Fix member type in static structures #68539
• getting properties of an object X that inherits form another class Y and overrides member Z should return both members as properties: X.Z and Y.Z. We are returning only the current object's member and existing tests are expecting only one member in such a case. [wasm][debugger] Display parent's members on getProperties #68542

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Issue Details

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Refactoring of getProperties process on the debugger. Original refactoring branch: https://github.com/radical/runtime/tree/322a4fff21787cfc1a62a384414a63eea31eb093.
Fixes accessibility level sorting #63082 and closes the PR with old approach: #63339.
Changes:

• Moving all the functions connected with fetching object's (object / valuetype) members into a separate, static class to narrow down SdbHelper responsibilities.
• Creating GetMembersResult that is holding object's members sorted by accessibility.
• Moving ValueTypeClass into a separate file o shorten SdbHelper.cs.
• For sorting: more complex tests with inheritance instead of only string-based.

What is not covered:

• support for ValueTypes in DebuggerProxyAttribute: [wasm][debugger] Add support for ValueTypes in DebuggerProxyAttribute #68390
• support of Browsable Attribute in structures, no tests for it: [wasm][debugger] Add browsable attribute support for ValueType. #68485
• getting properties of an object X that inherits form another class Y and overrides member Z should return both members as properties: X.Z and Y.Z. We are returning only the current object's member and existing tests are expecting only one member in such a case.

Author:	ilonatommy
Assignees:	ilonatommy
Labels:	area-Debugger-mono
Milestone:	-

[ilonatommy]

/azp run runtime-staging

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[ilonatommy]

DebuggerTests.EvaluateOnCallFrameTests.EvaluateSimpleMethodCallsWithVariableParms that failed due to timeout in pipeline staging is passing locally.