[Ovmsdev] Add version strings to the boot partitions on the firmware page

[Craig Leres]

On 11/11/18 7:50 PM, Craig Leres wrote:
>> How is performance?
> I'll measure it but I suspect it's on the order of msecs. It has to read
> about 80K of flash to find the version string.

Quick survey says: < 50ms:

     I (151261) web: partition_detail Factory image took 0.049545
     I (151281) web: partition_detail OTA_0 image took 0.024156
     I (151301) web: partition_detail OTA_1 image took 0.048522

		Craig