Ror/params -- updating default boa params

[rcoreilly]

• updates default boa / pfc params based on current examples/boa and obelisk/boa params
• fixes PulvinarLayer inhibition dynamics #297 -- fix is in, just need some tests and further param search.

[codecov[bot]]

Codecov Report

Patch coverage: 20.14% and project coverage change: -0.10% :warning:

Comparison is base (d75f4d2) 29.97% compared to head (ff82d99) 29.88%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #299 +/- ## ========================================== - Coverage 29.97% 29.88% -0.10% ========================================== Files 85 85 Lines 15421 15524 +103 ========================================== + Hits 4623 4639 +16 - Misses 10534 10623 +89 + Partials 264 262 -2 ``` | [Files Changed](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer) | Coverage Δ | | |---|---|---| | [axon/damodtypes\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9kYW1vZHR5cGVzX3N0cmluZy5nbw==) | `0.00% <0.00%> (ø)` | | | [axon/deep\_layers.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9kZWVwX2xheWVycy5nbw==) | `13.76% <ø> (ø)` | | | [axon/deep\_net.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9kZWVwX25ldC5nbw==) | `0.00% <0.00%> (ø)` | | | [axon/globalvars\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9nbG9iYWx2YXJzX3N0cmluZy5nbw==) | `0.00% <0.00%> (ø)` | | | [axon/globalvtatype\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9nbG9iYWx2dGF0eXBlX3N0cmluZy5nbw==) | `0.00% <0.00%> (ø)` | | | [axon/gplayertypes\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9ncGxheWVydHlwZXNfc3RyaW5nLmdv) | `0.00% <0.00%> (ø)` | | | [axon/layertypes\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9sYXllcnR5cGVzX3N0cmluZy5nbw==) | `11.76% <0.00%> (-4.91%)` | :arrow_down: | | [axon/neuronavgvars\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9uZXVyb25hdmd2YXJzX3N0cmluZy5nbw==) | `11.76% <0.00%> (-4.91%)` | :arrow_down: | | [axon/neuronflags\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9uZXVyb25mbGFnc19zdHJpbmcuZ28=) | `0.00% <0.00%> (ø)` | | | [axon/neuronidxs\_string.go](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer#diff-YXhvbi9uZXVyb25pZHhzX3N0cmluZy5nbw==) | `0.00% <0.00%> (ø)` | | | ... and [12 more](https://app.codecov.io/gh/emer/axon/pull/299?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer) | | ... and [2 files with indirect coverage changes](https://app.codecov.io/gh/emer/axon/pull/299/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=emer)

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[rcoreilly]

assuming tests pass, this should be good to go..