Merge branch 'feature/unit-tests' into 'develop'

src/algebra/TinyMatrix.hpp

src/algebra/TinyVector.hpp

src/language/PEGGrammar.hpp

src/language/ast/ASTBuilder.cpp

src/language/ast/ASTNodeAffectationExpressionBuilder.cpp

src/language/ast/ASTNodeBuiltinFunctionExpressionBuilder.cpp

src/language/ast/ASTNodeDataTypeBuilder.cpp

src/language/ast/ASTNodeExpressionBuilder.cpp

src/language/ast/ASTNodeFunctionExpressionBuilder.cpp

src/language/ast/ASTNodeListAffectationExpressionBuilder.cpp

src/language/node_processor/AffectationProcessor.hpp

src/language/node_processor/FunctionProcessor.hpp

src/language/node_processor/InnerListToVectorProcessor.hpp

...language/node_processor/TinyMatrixExpressionProcessor.hpp

...language/node_processor/TinyVectorExpressionProcessor.hpp

src/language/node_processor/TupleToVectorProcessor.hpp

src/language/utils/ASTNodeDataType.cpp

src/language/utils/ASTNodeDataType.hpp

src/language/utils/ASTNodeNaturalConversionChecker.cpp

src/language/utils/AffectationProcessorBuilder.hpp