Remove colons in log

[benjamin051000]

The : is unnecessary. These logs are never going to be read by a human, so why make them human-readable?

The example write_log.txt from EE's website is 2,301,150 lines, with 63,876,645 characters. One ':' per line is 2,301,150 colons throughout the file.

By removing this, we save about 3.6% file space. Not much, but it's effortless to achieve.

[benjamin051000]

Other things could also be removed:

• space between time and unit
• space between unit and hysnc
• space between hsync and vsync

[benjamin051000]

We still sorta need the spaces between the r, g, b signals since they are variable-width and we don't necessarily have an easy way to record what their widths are. Unless in VHDL you can do something like

write(line_el, red'length);

If this is possible, then we can remove those spaces, too by including a line at the top that specifies the lengths of r, g, and b.

[benjamin051000]

Unfortunately, removing more spaces may incur a runtime cost, as we may need regex to parse it rather than a simple string split.