Sort port IDs by type and then numerically

[bnaecker]

Closes #105

[bnaecker]

Here's the output with this change:

root@oxz_switch0:~# /tmp/swadm sp xcvr ls
Port    State      Reset  Interrupt  Power  Power control  Vendor           Part No.          Serial No.
qsfp0   supported  false  false      low    Hardware       Arista Networks                    Q
qsfp3   supported  false  true       high   Software       Intel Corp       SPTSLP3SLCDF      CRF1220403R4P
qsfp4   supported  false  true       high   Software       FINISAR CORP.    FTLC1159RGPL      RB9A0BV
qsfp5   supported  false  true       low    Hardware       FINISAR CORP     FTL410QE4C-1Y     UBGB7BW
qsfp6   supported  false  true       high   Software       FINISAR CORP     FTLC9152RGPL      UARAXLZ
qsfp7   supported  false  true       high   Software       FS               QSFP28-BIDI-100G  C2204264794
qsfp8   supported  false  true       high   Software       FINISAR CORP     FTLC9558REPM      X6HAW9Q
qsfp9   supported  false  true       high   Software       FOIT             AFBR-89BDDZ       AF2148N000D
qsfp11  supported  false  true       high   Software       FINISAR CORP.    FTLC1156RDPL      X52ANPQ
qsfp26  supported  false  false      high   Software       Intel Corp       SPTSLP3SLCDE      PJF123470C42P