Crystalline L Arginine Salt Of (R) 2 (7 (4 Cyclopentyl 3 (Trifluoromethyl)Benzyloxy) 1,2,3,4 Tetrahydrocyclo Penta[B]Indol 3 Yl)Acetic Acid(Compound1) For Use In Sipi Receptor Associated Disorders - EP3310760