WIP add oracle client

[prees1]

Currently not working.

sources for installing are here - https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html#ic_x64_inst

and inspired by this here - https://github.com/Shrinidhikulkarni7/OracleClient_Alpine/blob/master/Dockerfile

hitting this error when trying to use sqplus

/lib # sqlplus 
Error relocating /lib/libclntsh.so.21.1: __printf_chk: symbol not found
Error relocating /lib/libclntsh.so.21.1: canonicalize_file_name: symbol not found
Error relocating /lib/libclntsh.so.21.1: getcontext: symbol not found
Error relocating /lib/libclntsh.so.21.1: __res_nsearch: symbol not found
Error relocating /lib/libclntsh.so.21.1: bindresvport: symbol not found
Error relocating /lib/libclntsh.so.21.1: __vsprintf_chk: symbol not found
Error relocating /lib/libclntsh.so.21.1: __dn_skipname: symbol not found
Error relocating /lib/libclntsh.so.21.1: backtrace: symbol not found
Error relocating /lib/libclntsh.so.21.1: backtrace_symbols: symbol not found
Error relocating /lib/libclntsh.so.21.1: __finite: symbol not found
Error relocating /lib/libclntsh.so.21.1: __fprintf_chk: symbol not found
Error relocating /lib/libclntsh.so.21.1: __res_nclose: symbol not found
Error relocating /lib/libclntsh.so.21.1: __res_ninit: symbol not found
Error relocating /lib/libclntsh.so.21.1: secure_getenv: symbol not found
Error relocating /lib/libclntshcore.so.21.1: __printf_chk: symbol not found
Error relocating /lib/libclntshcore.so.21.1: __fprintf_chk: symbol not found
Error relocating /lib/libclntshcore.so.21.1: __vsprintf_chk: symbol not found
Error relocating /lib/libnnz21.so: backtrace: symbol not found
Error relocating /lib/libnnz21.so: backtrace_symbols: symbol not found
Error relocating /lib/sqlplus: __printf_chk: symbol not found
Error relocating /lib/sqlplus: __strncat_chk: symbol not found
Error relocating /lib/sqlplus: __vsprintf_chk: symbol not found
Error relocating /lib/sqlplus: __fprintf_chk: symbol not found

Looks like its cause by a difference in the c library in alpline, apline-glibc
asg1612/alpine-oracle-instantclient#1