add provided cell features and cell2ids

cell/data/cell2id.tsv

@@ -0,0 +1,40 @@
+cell	id
+NCIH460	0
+PA1	1
+SW620	2
+VCAP	3
+NCIH520	4
+OCUBM	5
+UACC62	6
+A2058	7
+KPL1	8
+ES2	9
+SKMEL30	10
+LNCAP	11
+ZR751	12
+SW837	13
+SKOV3	14
+HT29	15
+A375	16
+MSTO	17
+NCIH1650	18
+MDAMB436	19
+UWB1289BRCA1	20
+EFM192B	21
+A2780	22
+HCT116	23
+SKMES1	24
+A427	25
+RKO	26
+RPMI7951	27
+DLD1	28
+NCIH23	29
+OVCAR3	30
+T47D	31
+COLO320DM	32
+HT144	33
+CAOV3	34
+UWB1289	35
+NCIH2122	36
+OV90	37
+LOVO	38