feat(commands): more commands (#30)

- I wrote a scripts to copy and generate all commands missing in iris
from fig repo: https://github.com/withfig/autocomplete
- Add a new script to generate commands docs about which commands
currently are inside commands folder
377d4aac663590e504fe39a92eb4dac4cbd333b2
- Add more icons e64d4e70a1db61e62053460a882e093bd6373ab1

commands/sys/whereis.go

@@ -0,0 +1,22 @@
+package sys
+
+import (
+	"github.com/versenilvis/iris/commands/core"
+)
+
+func init() {
+	core.Register(&core.Spec{
+		Name:        "whereis",
+		Description: "Locate the binary, source, and manual page files for a command",
+		Options: []core.Option{
+			{Name: "-b", Description: "Search only for binaries"},
+			{Name: "-m", Description: "Search only for manual sections"},
+			{Name: "-s", Description: "Search only for sources"},
+			{Name: "-u", Description: "Search for unusual entries"},
+			{Name: "-B", Description: "Search for binaries only in the specified directory"},
+			{Name: "-M", Description: "Search for manual pages only in the specified directory"},
+			{Name: "-S", Description: "Search for sources only in the specified directory"},
+			{Name: "-f", Description: "Terminate the -B, -M, and -S options"},
+		},
+	})
+}