Add verbose request logs to server.

[rootedbox]

Add verbose request logs to server. Completes https://github.com/jmorganca/ollama/issues/1118

example output

2023/11/27 12:30:18 routes.go:736: Request POST - /api/generate; QueryParams: map[]; URLParams: []; Body: {"model":"orca-mini","prompt":"word up","system":"","template":"","context":[31822,13,8458,31922,3244,31871,13,3838,397,363,7421,8825,342,5243,10389,5164,828,31843,9530,362,988,362,365,473,31843,13,13,8458,31922,9779,31871,13,5521,397,365,13,13,8458,31922,13166,31871,13,312,705,363,7421,8825,29328,289,2803,365,288,2470,8931,291,1673,1132,31843,1035,473,312,955,365,1703,31902,13,8458,31922,3244,31871,13,3838,397,363,7421,8825,342,5243,10389,5164,828,31843,9530,362,988,362,365,473,31843,13,13,8458,31922,9779,31871,13,5521,397,365,13,13,8458,31922,13166,31871,13,312,705,363,7421,8825,29328,289,2803,365,288,2470,8931,291,1673,1132,31843,1035,473,312,955,365,1703,31902,13,8458,31922,3244,31871,13,3838,397,363,7421,8825,342,5243,10389,5164,828,31843,9530,362,988,362,365,473,31843,13,13,8458,31922,9779,31871,13,31824,3106,322,260,259,6285,313,13,13,8458,31922,13166,31871,13,312,25122,31844,504,312,705,432,1796,674,365,397,12065,289,31843,9410,365,3281,1673,541,3846,405,1132,562,266,5149,365,764,955,351,31902,13,8458,31922,3244,31871,13,3838,397,363,7421,8825,342,5243,10389,5164,828,31843,9530,362,988,362,365,473,31843,13,13,8458,31922,9779,31871,13,26755,13,13,8458,31922,13166,31871,13,312,31876,31836,10157,31844,504,362,363,7421,8825,31844,312,705,432,29328,289,1313,8931,342,6175,5000,31843,1725,4199,1717,322,289,2803,351,2470,8931,291,1673,1132,31843,1053,635,2492,2128,312,473,955,365,351,31902],"format":"","options":null}; ClientIP: 127.0.0.1; Status: 200; UserAgent: ollama/0.0.0 (arm64 darwin) Go/go1.21.4; Duration: 5.217641542s