Make profiler output readable

[jpenilla]

old:

Client Frame 100.000% total, 100.000% parent, self 0.340% total, self 0.340% children, avg 1.000 sum 1, 13.238ms raw sum
|+++gameRenderer 54.748% total, 54.748% parent, self 4.189% total, self 7.652% children, avg 1.000 sum 1, 7.247ms raw sum
|---|---gui 26.136% total, 47.739% parent, self 4.150% total, self 15.877% children, avg 1.000 sum 1, 3.460ms raw sum
|+++|+++|+++debug 21.613% total, 82.694% parent, self 21.613% total, self 100.000% children, avg 1.000 sum 1, 2.861ms raw sum
|---|---|---chat 0.359% total, 1.372% parent, self 0.359% total, self 100.000% children, avg 1.000 sum 1, 0.047ms raw sum
|+++|+++|+++selectedItemName 0.015% total, 0.056% parent, self 0.015% total, self 100.000% children, avg 1.000 sum 1, 0.002ms raw sum
|---|---level 24.246% total, 44.287% parent, self 0.566% total, self 2.336% children, avg 1.000 sum 1, 3.210ms raw sum
|+++|+++|+++terrain 6.200% total, 25.571% parent, self 6.163% total, self 99.414% children, avg 1.000 sum 1, 0.821ms raw sum
|---|---|---|---minecraft:after_solid_blocks 0.029% total, 0.473% parent, self 0.029% total, self 100.000% children, avg 1.000 sum 1, 0.004ms raw sum
|+++|+++|+++|+++minecraft:after_cutout_mipped_blocks 0.005% total, 0.077% parent, self 0.005% total, self 100.000% children, avg 1.000 sum 1, 0.001ms raw sum
|---|---|---|---minecraft:after_cutout_blocks 0.002% total, 0.037% parent, self 0.002% total, self 100.000% children, avg 1.000 sum 1, 0.000ms raw sum

new:

Client Frame 100.000% total, 100.000% parent, self 0.147% total, self 0.147% children, avg 1.000 sum 1, 10.679ms raw sum
  ├─gameRenderer 54.883% total, 54.883% parent, self 0.032% total, self 0.059% children, avg 1.000 sum 1, 5.861ms raw sum
  │   ├─level 45.516% total, 82.934% parent, self 0.086% total, self 0.190% children, avg 1.000 sum 1, 4.861ms raw sum
  │   │   ├─terrain_setup 16.912% total, 37.155% parent, self 5.631% total, self 33.296% children, avg 1.000 sum 1, 1.806ms raw sum
  │   │   │   ├─chunk_render_lists 7.725% total, 45.677% parent, self 7.725% total, self 100.000% children, avg 1.000 sum 1, 0.825ms raw sum
  │   │   │   ├─chunk_update 2.031% total, 12.008% parent, self 2.031% total, self 100.000% children, avg 1.000 sum 1, 0.217ms raw sum
  │   │   │   ├─chunk_render_tick 1.247% total, 7.372% parent, self 1.247% total, self 100.000% children, avg 1.000 sum 1, 0.133ms raw sum
  │   │   │   ├─translucent_triggering 0.244% total, 1.441% parent, self 0.244% total, self 100.000% children, avg 1.000 sum 1, 0.026ms raw sum
  │   │   │   ├─camera_setup 0.022% total, 0.133% parent, self 0.022% total, self 100.000% children, avg 1.000 sum 1, 0.002ms raw sum
  │   │   │   └─chunk_upload 0.012% total, 0.073% parent, self 0.012% total, self 100.000% children, avg 1.000 sum 1, 0.001ms raw sum
  │   │   ├─light_updates 15.915% total, 34.966% parent, self 15.915% total, self 100.000% children, avg 1.000 sum 1, 1.700ms raw sum