Added -ts argument to specify which (t)emperature (s)sensor to show the value for. Closes #8.

[nwg-piotr]

1. List available sensors with the -ls argument:

❯ gopsuinfo -ls
acpitz_input (43°C)
amdgpu_edge_input (45°C)
amdgpu_junction_input (47°C)
amdgpu_mem_input (0°C)
amdgpu_edge_input (41°C)
nvme_composite_input (40.85°C)
nvme_sensor1_input (40.85°C)
nvme_sensor2_input (39.85°C)
k10temp_tctl_input (41.125°C)

2. Use one as the -ts string, e.g. to show the temperature value for the k10temp_tctl_input sensor:

❯ gopsuinfo -c t -ts k10temp_tctl_input
47℃