Add submission checker base code

mlpstorage/submission_checker/README.md

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+# Submission Checker
+
+## Overview
+The submission checker is a tool designed to validate submissions against specified criteria in [Rules.md]().
+**TODO:** Add this link 
+
+
+## Running the Submission Checker
+
+To run the submission checker, use the following command:
+
+```
+python -m storage.mlpstorage.submission_checker.main --input <submissions_folder> \
+            [--version v2.0] \
+            [--submitters Micron]
+```
+
+### Parameters
+- `--input`: Path to the submission directory
+- `--version`: MLPerf storage version
+- `--submitters`: Only check the submitters provided. Comma separated.
+
+

mlpstorage/submission_checker/checks/base.py

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+from abc import ABC, abstractmethod
+
+
+class BaseCheck(ABC):
+    """
+    A generic check class meant to be inherited by concrete check implementations.
+    Subclasses must register their check methods into `self.checks`.
+    """
+
+    def __init__(self, log, path):
+        self.checks = []
+        self.log = log
+        self.path = path
+        self.name = "base checks"
+        pass
+
+    def run_checks(self):
+        """
+        Execute all registered checks. Returns True if all checks pass, False otherwise.
+        """
+        valid = True
+        errors = []
+        for check in self.checks:
+            try:
+                v = self.execute(check)
+                valid &= v
+            except BaseException:
+                valid &= False
+                self.log.error(
+                    "Exception occurred in %s while running %s in %s",
+                    self.path,
+                    check.__name__,
+                    self.__class__.__name__)
+        return valid
+
+    def execute(self, check):
+        """Custom execution of a single check method."""
+        return check()
+
+    def __call__(self):
+        """Allows the check instance to be called like a function."""
+        self.log.info("Starting %s for: %s", self.name, self.path)
+        valid = self.run_checks()
+        if valid:
+            self.log.info("All %s checks passed for: %s", self.name, self.path)
+        else:
+            self.log.error(
+                "Some %s Checks failed for: %s",
+                self.name,
+                self.path)
+        return valid