xrp-price-aggregate@0.0.14

[yyolk]

xrp-price-aggregate@0.0.14

starts to address #27 - by filtering out at the time of failure any chains of providers requests.
Platforms that respond to at least the initial request will be included in the aggregate results

i.e.:

[ ❌ ] <~ won't be included
[ ✅ ✅ ❌ ] <~ will be included 👍 
[ ✅ ❌] <~ will be included 👍
[ ✅ ✅ ✅ ] <~ will be included 👍

see yyolk/xrp-price-aggregate#19 and https://github.com/yyolk/xrp-price-aggregate/releases/tag/0.0.14 This is a broad stroke.