Fixed #29: Parsers: Implement parsing memoization

Fixed #77 : Parser: ShortTermMemoryParser should be called separately
Fixed #78 : Remove VariableNode usage
Fixed #79 : ConceptManager: Implement compile caching
Fixed #80 : SheerkaExecute : parsers_key is not correctly computed
Fixed #81 : ValidateConceptEvaluator : Validate concept's where and pre clauses right after the parsing
Fixed #82 : SheerkaIsAManager: isa() failed when the set as a body
Fixed #83 : ValidateConceptEvaluator : Support BNF and SYA Concepts
Fixed #84 : ExpressionParser: Implement the parser as a standard parser
Fixed #85 : Services: Give order to services
Fixed #86 : cannot manage smart_get_attr(the short, color)

tests/parsers/test_DefRuleParser.py

@@ -3,12 +3,13 @@ import pytest
 from core.builtin_concepts_ids import BuiltinConcepts
 from core.concept import Concept
 from core.sheerka.services.SheerkaExecute import ParserInput
-from core.sheerka.services.SheerkaRuleManager import FormatAstNode, CompiledCondition
+from core.sheerka.services.SheerkaRuleManager import CompiledCondition
 from core.tokenizer import Tokenizer, Keywords
 from core.utils import tokens_are_matching
 from parsers.BaseCustomGrammarParser import KeywordNotFound, NameNode, SyntaxErrorNode
 from parsers.BaseParser import UnexpectedEofParsingError
 from parsers.DefRuleParser import DefRuleParser, DefExecRuleNode, DefFormatRuleNode
+from parsers.FormatRuleActionParser import FormatAstNode
 from tests.TestUsingMemoryBasedSheerka import TestUsingMemoryBasedSheerka
 
 cmap = {