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/bc.go

@@ -0,0 +1,21 @@
+package sys
+
+import (
+	"github.com/versenilvis/iris/commands/core"
+)
+
+func init() {
+	core.Register(&core.Spec{
+		Name:        "bc",
+		Description: "An arbitrary precision calculator language",
+		Options: []core.Option{
+			{Name: "--help", Description: "Print the usage and exit"},
+			{Name: "--interactive", Description: "Force interactive mode"},
+			{Name: "--mathlib", Description: "Define the standard math library"},
+			{Name: "--warn", Description: "Give warnings for extensions to POSIX bc"},
+			{Name: "--standard", Description: "Process exactly the POSIX bc language"},
+			{Name: "--quiet", Description: "Do not print the normal GNU bc welcome"},
+			{Name: "--version", Description: "Print the version number and copyright and quit"},
+		},
+	})
+}