add Full ICU DATA package & ICU DATA Tools package.
add package description.

see: https://github.com/openwrt/packages/issues/6536

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Update to ICU 62 (62.1)
ICU 62 includes number format skeleton support in MessageFormat, ICU4C DecimalFormat wrapping the new NumberFormatter implementation for improved performance.

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: ar71xx, LEDE trunk r5488-893a1ed
Run tested: NONE

Description:
ICU 61 upgrades to CLDR 33 locale data, has a new Java implementation
for number and currency parsing, and includes many small API additions,
improvements, and bug fixes.
(includes security fix CVE-2017-17484,CVE-2017-15422)

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: ar71xx, LEDE trunk r5488-893a1ed
Run tested: NONE

Description:
upstream update to 60.2
note: fix g++-4 issue

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

http://www.sourcebrella.com/blog/double-free-vulnerability-international-components-unicode-icu/

https://security-tracker.debian.org/tracker/CVE-2017-14952

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

fix Makefile chmod (644)
replace MD5SUM with HASH
add PKG_MIRROR_HASH when PKG_SOURCE_PROTO:=git

(PKG_SOURCE_PROTO:=svn tarballs are not reproducible for now)

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

libicudata.so not build hard-float ABI

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: ar71xx brcm2708, LEDE trunk r3972-aefa195
Run tested: NONE

Description:
upstream update to 59.1

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: ar71xx, mips_24kc_gcc-6.3.0_musl, LEDE trunk r3576-ea24d87
Run tested: NONE

Description:
"php7-mod-intl" build fail, because of lacking icu-config.

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: ar71xx, mips_34kc_gcc-5.3.0_musl, OpenWrt trunk 50104
                ar71xx, mips_24kc_gcc-5.4.0_musl, LEDE trunk r3503-a112435
Run tested: NONE

Description:
openwrt buildbot report build fail

```
./runConfigureICU CC="gcc" CFLAGS="-O2 -I/home/builder/trunk/openwrt/staging_dir/host/include -I/home/builder/trunk/openwrt/staging_dir/host/usr/include -I/home/builder/trunk/openwrt/staging_dir/target-i386_pentium4_glibc-2.22/host/include" CPPFLAGS="-I/home/builder/trunk/openwrt/staging_dir/host/include -I/home/builder/trunk/openwrt/staging_dir/host/usr/include -I/home/builder/trunk/openwrt/staging_dir/target-i386_pentium4_glibc-2.22/host/include" LDFLAGS="-L/home/builder/trunk/openwrt/staging_dir/host/lib -L/home/builder/trunk/openwrt/staging_dir/host/usr/lib -L/home/builder/trunk/openwrt/staging_dir/target-i386_pentium4_glibc-2.22/host/lib" SHELL="/usr/bin/env bash" Linux/gcc CC="gcc" CXX="g++" --disable-debug --enable-release --enable-shared --enable-static --enable-draft --enable-renaming --disable-tracing --disable-extras --enable-dyload --prefix=/home/builder/trunk/openwrt/staging_dir/target-i386_pentium4_glibc-2.22/host ; fi )
runConfigureICU: unrecognized platform "CC=gcc" (use --help for help)
```

"host-build.mk" is differs between OpenWrt and LEDE.

https://github.com/openwrt/packages/pull/3993

83b6bfc235

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: brcm2708 ,aarch64_cortex-a53+neon-vfpv4_musl, LEDE head r3426-4c09f99
Run tested: NONE

Description:
buildbots fail situation of CONFIG_CCACHE=y

`Running ./configure  CC=ccache gcc CXX=ccache g++ ....`

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: brcm2708
                aarch64_cortex-a53+neon-vfpv4_musl
                LEDE head r3426-4c09f99
Run tested: NONE

Description:
buildbots fail on link ARM object.

   error: xxxxxx.o uses VFP register arguments,

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: me
Compile tested: ar71xx mips_24kc_musl LEDE r3346-9eacb9d
Run tested: NONE

Description:
buildbots fail at accessing files under HOST_BUILD_DIR.

http://downloads.lede-project.org/snapshots/faillogs/mips_24kc/packages/icu/compile.txt

Move necessary files to STAGING_DIR_HOSTPKG.

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Maintainer: @nxhack
Compile tested: ar71xx mips_24kc_musl-1.1.15 LEDE r2610-324bdf3
Run tested: NONE

Description:
icu: Bumped to v58.2
for emoji handling

previous PR #2817

add patches/001-disable-strtod_l.patch
missing xlocale.h in case of using musl.

Signed-off-by: Hirokazu MORIKAWA <morikw2@gmail.com>

Signed-off-by: Mirko Vogt <mirko@openwrt.org>