BuildSystem: Move all userpace libraries under the userspace directory

As the number of libraries is increasing, root directory starts to
expand. This adds better organization for libraries

userspace/libraries/LibC/include/termios.h

@@ -0,0 +1,149 @@
+#ifndef _TERMIOS_H
+#define _TERMIOS_H 1
+
+// https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/termios.h.html
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#define __need_pid_t
+#include <sys/types.h>
+
+typedef unsigned int cc_t;
+typedef unsigned int speed_t;
+typedef unsigned int tcflag_t;
+
+#define VEOF	0
+#define VEOL	1
+#define VERASE	2
+#define VINTR	3
+#define VKILL	4
+#define VMIN	5
+#define VQUIT	6
+#define VSTART	7
+#define VSTOP	8
+#define VSUSP	9
+#define VTIME	10
+
+#define NCCS	11
+
+struct termios
+{
+	tcflag_t	c_iflag;	/* Input modes. */
+	tcflag_t	c_oflag;	/* Output modes. */
+	tcflag_t	c_cflag;	/* Control modes. */
+	tcflag_t	c_lflag;	/* Local modes. */
+	cc_t		c_cc[NCCS];	/* Control characters. */
+};
+
+#define BRKINT	0x001
+#define ICRNL	0x002
+#define IGNBRK	0x004
+#define IGNCR	0x008
+#define IGNPAR	0x010
+#define INLCR	0x020
+#define INPCK	0x040
+#define ISTRIP	0x080
+#define IXANY	0x100
+#define IXOFF	0x200
+#define IXON	0x400
+#define PARMRK	0x800
+
+#define OPOST		0x0001
+#define ONLCR		0x0002
+#define OCRNL		0x0004
+#define ONOCR		0x0008
+#define ONLRET		0x0010
+#define OFDEL		0x0020
+#define OFILL		0x0040
+#define NLDLY		0x0080
+	#define NL0		0x0000
+	#define NL1		0x0080
+#define CRDLY		0x0300
+	#define CR0		0x0000
+	#define CR1		0x0100
+	#define CR2		0x0200
+	#define CR3		0x0300
+#define TABDLY		0x0C00
+	#define TAB0	0x0000
+	#define TAB1	0x0400
+	#define TAB2	0x0800
+	#define TAB3	0x0C00
+#define BSDLY		0x1000
+	#define BS0		0x0000
+	#define BS1		0x1000
+#define VTDLY		0x2000
+	#define VT0		0x0000
+	#define VT1		0x2000
+#define FFDLY		0x4000
+	#define FF0		0x0000
+	#define FF1		0x4000
+
+#define B0		0
+#define B50		1
+#define B75		2
+#define B110	3
+#define B134	4
+#define B150	5
+#define B200	6
+#define B300	7
+#define B600	8
+#define B1200	9
+#define B1800	10
+#define B2400	11
+#define B4800	12
+#define B9600	13
+#define B19200	14
+#define B38400	15
+
+#define CSIZE	0x03
+	#define CS5 0x00
+	#define CS6 0x01
+	#define CS7 0x02
+	#define CS8 0x03
+#define CSTOPB	0x04
+#define CREAD	0x08
+#define PARENB	0x10
+#define PARODD	0x20
+#define HUPCL	0x40
+#define CLOCAL	0x80
+
+#define ECHO	0x001
+#define ECHOE	0x002
+#define ECHOK	0x004
+#define ECHONL	0x008
+#define ICANON	0x010
+#define IEXTEN	0x020
+#define ISIG	0x040
+#define NOFLSH	0x080
+#define TOSTOP	0x100
+
+#define TCSANOW		0
+#define TCSADRAIN	1
+#define TCSAFLUSH	2
+
+#define TCIFLUSH	0x01
+#define TCOFLUSH	0x02
+#define TCIOFLUSH	(TCIFLUSH | TCOFLUSH)
+
+#define TCIOFF	0
+#define TCION	1
+#define TCOOFF	2
+#define TCOON	3
+
+speed_t	cfgetispeed(const struct termios* termios_p);
+speed_t	cfgetospeed(const struct termios* termios_p);
+int		cfsetispeed(struct termios* termios_p, speed_t speed);
+int		cfsetospeed(struct termios* termios_p, speed_t speed);
+int		tcdrain(int fildes);
+int		tcflow(int fildes, int action);
+int		tcflush(int fildes, int queue_selector);
+int		tcgetattr(int fildes, struct termios* termios_p);
+pid_t	tcgetsid(int fildes);
+int		tcsendbreak(int fildes, int duration);
+int		tcsetattr(int fildes, int optional_actions, const struct termios* termios_p);
+
+__END_DECLS
+
+#endif