Do you consider 2 Ezdras and the other books of the Apocrypha to be included as ALL SCRIPTURE? How about the gospel of Thomas? Or the book of Enoch? How about the Pseudepigrapha? Are these ALL SCRIPTURE?
All Books in the King James Version are Scriptures.
Now as to your question about the books you mentioned, are they Scriptures? First you have to ask yourself, why did God NOT ALLOW them into His Word? There is a reason, and it is because something written in it, is NOT what God wants in His Word, therefore did not allow it into His Word.
Can we glean some Truths from these OTHER BOOKS? Sure, but never take what they say as the WORD OF GOD. And read everything with a grain of salt.
But this is Better to do. NOT read any of them at all. Even though i have read most (if not all) of them. The reason is, is Because satan will have another whole set of tools to use against you, by believing in those OTHER BOOKS.
Are these OTHER BOOKS evil, if they teach something contrary to what is in the Word of God, then i would say YES they are, hence the reason God did not allow them into His Word. Can we learn something in them, That is possible too. But why give satan more tools to use against you? These Books will only cause more confusion, which God is NOT the author of. So then it is best to just stay away from all of them.
Even the Bible itself mentions Books that are not in the Word of God. Would these then be accepted, if the Word of God testifies of them?
Jos_10:13 And the sun stood still, and the moon stayed, until the people had avenged themselves upon their enemies. Is not this written in the book of Jasher? So the sun stood still in the midst of heaven, and hasted not to go down about a whole day.
2Sa_1:18 (Also he bade them teach the children of Judah the use of the bow: behold, it is written in the book of Jasher.)
Mal_3:16 Then they that feared the LORD spake often one to another: and the LORD hearkened, and heard it, and a book of remembrance was written before him for them that feared the LORD, and that thought upon his name.
i know not.