Relocate trial results to `.pkgjogger`

[awadell1]

Moving to GIT_ROOT/.pkgjogger has several advantages

Pros

• Easier to add to a global.gitignore (It's .pkgjogger/) where trial/ might be too broad
• Less external folder names than PKG_DIR/benchmarks/trail (ie. what if we switch to benchmark)
• May want to store additional information here (Like a database of trail metadata), making trials a misnomer

Cons

• Breaking change for external tools
• User need to relocate trail results