kernel: separate headers into kernel and user headers

all kernel headers have been moved from include/mango to include/kernel
and include definitions that are only relevant to kernel-space.

any definitions that are relevant to both kernel- and user-space
(i.e. type definitions, syscall IDs) have been moved to
include/mango within libmango.

libc/include/mango/libc/ctype.h

@@ -1,26 +0,0 @@
-#ifndef MANGO_LIBC_TYPES_H_
-#define MANGO_LIBC_TYPES_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern int isalnum(int c);
-extern int isalpha(int c);
-extern int iscntrl(int c);
-extern int isdigit(int c);
-extern int isgraph(int c);
-extern int islower(int c);
-extern int isprint(int c);
-extern int ispunct(int c);
-extern int isspace(int c);
-extern int isupper(int c);
-extern int isxdigit(int c);
-extern int tolower(int c);
-extern int toupper(int c);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

libc/include/mango/libc/stdio.h

@@ -1,21 +0,0 @@
-#ifndef MANGO_STDIO_H_
-#define MANGO_STDIO_H_
-
-#include <stdarg.h>
-#include <stddef.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-int snprintf(char *buffer, size_t count, const char *format, ...);
-int vsnprintf(char *buffer, size_t count, const char *format, va_list va);
-
-int fctprintf(void (*out)(char character, void *arg), void *arg, const char*format, ...);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif

libc/include/mango/libc/string.h

@@ -1,36 +0,0 @@
-#ifndef MANGO_LIBC_STRING_H_
-#define MANGO_LIBC_STRING_H_
-
-#include <stdint.h>
-#include <stddef.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern char *strcpy(char *output, const char *input);
-extern char *strncpy(char *output, const char *input, unsigned long count);
-extern char *strchrnul(const char *s, int c);
-extern char *strchr(const char *s, int c);
-extern size_t lfind(const char *str, const char accept);
-extern size_t strspn(const char *s, const char *c);
-extern size_t strcspn(const char *s, const char *c);
-extern char *strpbrk(const char *s, const char *b);
-extern size_t strlen(const char *str);
-extern char *strrchr(const char *str, int c);
-extern int strcmp(const char *s1, const char *s2);
-extern int strncmp(const char *s1, const char *s2, unsigned long n);
-extern void *memcpy(void *str1, const void *str2, size_t n);
-extern int memcmp(const void *str1, const void *str2, size_t n);
-extern void *memset(void *str, int c, size_t n);
-extern void *memmove(void *dst, const void *src, size_t n);
-extern char *strdup(const char *src);
-extern char *strtok_r(char *str, const char *delim, char **saveptr);
-extern char *strcat(char *dest, const char *src);
-extern char *strncat(char *dest, const char *src, size_t num);
-extern void *memchr(const void *ptr, int value, unsigned long num);
-
-#ifdef __cplusplus
-}
-#endif
-#endif