CommonLibs: Print soft bits with less confidence to console when printing a soft vector.
CommonLibs: Print soft bits with less confidence to console when printing a soft vector.

We use other symbols to show that these bits has less confidence:
o and . for 0 with less confidence
| and ' for 1 with less confidence

Change-Id: I747a17568ee48f1f3163e8dfab2e450af85e6435

ttsou/osmo-trx,ttsou/osmo-trx,osmocom/osmo-trx,ttsou/osmo-trx,osmocom/osmo-trx,osmocom/osmo-trx,ttsou/osmo-trx,osmocom/osmo-trx