chore(analysis/special_functions/trigonometric/basic): move results about derivatives to a new file (#10109)

This is part of a refactor of the `analysis/special_functions` folder, in which I will isolate all lemmas about derivatives. The result will be a definition of Lp spaces that does not import derivatives.

Author: RemyDegenne

src/analysis/special_functions/arsinh.lean

@@ -3,7 +3,7 @@ Copyright (c) 2020 James Arthur. All rights reserved.
 Released under Apache 2.0 license as described in the file LICENSE.
 Authors: James Arthur, Chris Hughes, Shing Tak Lam
 -/
-import analysis.special_functions.trigonometric.basic
+import analysis.special_functions.trigonometric.deriv
 import analysis.special_functions.log
 
 /-!