gitignore: add .so/.dll in inner 'electrum' folder
gitignore: add .so/.dll in inner 'electrum' folder

vialectrum/vialectrum,vialectrum/vialectrum,spesmilo/electrum,vialectrum/vialectrum,pooler/electrum-ltc,pooler/electrum-ltc,spesmilo/electrum,wakiyamap/electrum-mona,spesmilo/electrum,spesmilo/electrum,wakiyamap/electrum-mona,pooler/electrum-ltc,wakiyamap/electrum-mona,pooler/electrum-ltc,wakiyamap/electrum-mona